Showing posts with label animals. Show all posts
Showing posts with label animals. Show all posts

Teratorns in GURPS

The Teratorns (“monstrous birds” or “wonder-birds”) were related to the new-world vultures, and probably resembled condors, both physically and in their habits, although some of them may have been a bit more actively predatory. The earliest known member of the family was Taubatornis, a relatively small bird from southern Brazil which lived during the late Oligocene to early Miocene. The “giant teratorn” Argentavis was found in Argentina during the late Miocene. Later members of the family were found further north. Aiolornis inhabited the western United States from the early Pliocene to the middle Pleistocene. It was probably the ancestor of Cathertornis and Teratornis, both of which lived in the same area during the late Pleistocene. Teratornis formed two species, the better known T. merriami and the larger T. woodburnensis. Oscaravis was a smaller genus, found in Cuba around the same time.

Argentavis

ST 11; DX 10; IQ 3; HT 12.
HP 11; Will 11; Per 11; FP 12; Speed 5.50; Dodge 8; Move 3.
SM +1 (2 hexes), 160 lbs.

Sharp Beak (12): 1d−1 pi+. Reach C, 1.

Traits: Acute Vision 2; Born Biter 1; Discriminatory Smell; Enhanced Move 3 (Air Speed 48); Enhanced Move 2 (Ground Speed 12; Costs Fatigue, 1 FP/second); Flight (Winged; Cannot Hover); Long Neck 1*; No Fine Manipulators; Peripheral Vision; Reduced Consumption 4 (Cast-Iron Stomach); Wild Animal.
Skills: Brawling-12; Intimidation-12; Navigation (Air)-12; Survival (Mountain)-12; Tracking-15.

* see GURPS Furries, p. 12.

For Taubatornis (12 lbs.) reduce ST and HP to 5, SM to −1. Damage with the beak becomes 1d−4. Beak Reach becomes C. Reduce Enhanced Move to 2 (Air Speed 24) and 1 (Ground Speed 6).

For Aiolornis (50 lbs.) or Teratornis woodburnensis (40 lbs.) reduce ST and HP to 7, SM to 0. Damage with the beak becomes 1d−3. Reduce Enhanced Move to 2 (Air Speed 24) and 1 (Ground Speed 6). Change Survival speciality to (Plains).

For Teratornis merriami (33 lbs.) or Cathartornis (24 lbs.) reduce ST and HP to 6, SM to 0. Damage with the beak becomes 1d−4. Reduce Enhanced Move to 2 (Air Speed 24) and 1 (Ground Speed 6). Change Survival speciality to (Plains).

For Oscaravis (18 lbs.) reduce ST and HP to 5, SM to 0. Damage with the beak becomes 1d−4. Reduce Enhanced Move to 2 (Air Speed 24) and 1 (Ground Speed 6). Change Survival speciality to (Island/Beach).

Dire Walrus in GURPS

The dire walrus, Dinodobenus atrox , also known as the tigrishvalur (“tiger-whale”) and sverðkattfiskur (“sword-cat-fish”) is a pinniped of the Odobenidae family. It resembles a cross between a leopard seal and a walrus, but is larger than both. The canine teeth of the upper jaw are extremely long, although not quite as large as those of a true walrus. Unlike walruses, it is an active hunter and uses its fangs like those of other sabre-toothed predators, to make precise bites into large prey.

It is considered a creature of ill-omen, and there are many superstitions about it. It is said that to name it while at sea draws its attention, that it will relentlessly pursue anyone who escapes from it, and that its flesh will disappear from any cooking pot.

Dire Walrus

ST 33; DX 10; IQ 4; HT 12.
HP 33; Will 10; Per 10; FP 12; Speed 5.50; Dodge 8; Move 1 (land), 6 (water).
SM +3 (4 hexes), 4,500 lbs.

Bite (12): 3d+4 imp. Reach C, 1.
Slam (12): 3d+3 cr. at 1 yard per second. See GURPS Basic Set, p. 371.
Trample (12): 3d+5 cr. Only against SM +1 or less (SM +2 if prone). Automatic hit for half damage on overrun. See GURPS Basic Set, p. 404.

Traits: Bad Sight (Low Resolution); Bad Temper (15); Bloodlust (12); Breath Holding 6; DR (Tough Skin) 6; High Pain Threshold; Night Vision 2; No Fine Manipulators; No Legs (Semi-Aquatic); Peripheral Vision; Temperature Tolerance 25 (Cold); Vibration Sense (Air; Short Range 1); Vibration Sense (Water); Wild Animal.
Skills: Brawling-12; Survival (Island/Beach and Salt-Water Sea)-12; Swimming-16.

Trogontherium in GURPS

Although part of the beaver family, Trogontherium lacked the distinctive features of modern beavers such as webbed feet and a flattened tail, looking more like a chunky, giant rat. It seems to have preferred wetlands and probably lived in burrows, eating tree bark and roots. It evolved in Europe during the late Pliocene and spread as far as Siberia by the start of the Pleistocene. It went extinct in Europe in the middle Pleistocene, but survived in the east until the late Pleistocene.

Trogontherium

ST 11; DX 11; IQ 3; HT 12.
HP 11; Will 11; Per 12; FP 12; Speed 5.75; Dodge 8; Move 5.
SM 0 (2 hexes), 170 lbs.

Bite (11): 1d−2 cut. Reach C.

Traits: Bad Sight (Low Resolution); Born Biter 1; Breath Holding 3; Discriminatory Smell; DR 1 (Tough Skin); Enhanced Move 1 (Ground speed 10); Night Vision 1; Peripheral Vision; Quadruped; Temperature Tolerance 2 (Cold); Terrain Adaptation (Mud); Vibration Sense (Air; Short-Range 1); Wild Animal.
Skills: Stealth-12; Survival (Swampland)-12; Swimming-12.

Trogontherium is a fairly close match to many fictional monstrous rodents, such as the R.O.U.S. from The Princess Bride, or the giant rats of Dungeon Fantasy. Add Bad Temper (12) and Brawling-13 (raising bite damage to 1d−1) for such creatures.

Irish Elk in GURPS

The Irish Elk, Megaloceros giganteus, was neither closely related to elk, nor confined to Ireland. It actually inhabited the open forests bordering the mammoth steppe all the way from Ireland to Siberia. It was a huge deer, comparable in size to moose, with the largest known antlers of all time, robustly built, with a distinct hump on the shoulder. Cave paintings show it with a dark face and stripes running diagonally forwards and backwards from the hump, and another forming a ‘chinstrap’ under its jaw. The broad feet seem to have been well suited to soft ground, or swimming.

Irish Elk

ST 22; DX 11; IQ 4; HT 12.
HP 12; Will 11; Per 12; FP 12; Speed 5.75; Dodge 8; Move 6.
SM +2 (3 hexes), 1,300 lbs.

Antlers (11): 2d+2 imp. Reach C-2. May substitute slam damage at +1 per die during Move and Attack. Parry 8.
Slam (11): 1d−3 cr at Move 1, 1d−2 at Move 2, 1d−1 at Move 3-4, 1d at Move 5-6, 2d at Move 7-11, 3d cr at Move 12-15, 4d cr at Move 16-20, 5d cr at Move 21-24. See GURPS Basic Set, p. 371.
Trample (11): 2d+2 cr. Only against SM 0 or less (SM +1 or less if prone). Automatic hit for half damage on overrun. See GURPS Basic Set, p. 404.

Traits: Bad Sight (Low Resolution); Discriminatory Smell; DR 2 (Tough Skin); DR 2 (Partial, skull); Enhanced Move 2 (Ground speed 24); Night Vision 2; Parabolic Hearing 2; Peripheral Vision; Quadruped; Temperature Tolerance 2 (Cold); Terrain Adaptation (Mud and Snow); Wild Animal.
Skills: Survival (Woodlands)-12; Swimming-12.

After shedding antlers, remove antlers attack. For partially grown antlers, substitute the following:
Antlers (11): 2d cr. Reach C-1. May substitute slam damage during move and attack. Parry 8.

The above profile is for a stag. For a doe (1,000 lbs.) reduce ST and HP to 20. Remove antlers attack. Trample becomes 2d+1. Slam damage becomes 1d−3 at Move 1, 1d−2 at Move 2, 1d−1 at Move 3-4, 1d at Move 5-7, 2d at Move 8-12, 3d cr at Move 13-17, 4d cr at Move 18-22, 5d cr at Move 23-24.

Extinct Bovini in GURPS

The Bovini include many familiar animals, such as bison, buffalo, and cows. Their extinct relatives didn’t look all that different, being (mostly) large, heavyset animals with skinny legs, thick necks, and horns which stuck out sideways. It’s likely that most of them lived in single-sex herds, coming together only in mating season, and used coordinated aggression against perceived threats.

The Aurochs, Bos primigenius, was the ancestor of domestic cattle, bigger and hairier than most of their descendants. They seem to have been less social than other Bovini, living alone in summer and gathering in small herds the rest of the year. Aurochs evolved in the middle Pleistocene and were last seen in the 17th century.

The Bubalus genus includes several species of living Asian water buffalo. Bubalus cebuensis was an exceptionally small example, from the island of Cebu in the Philippines during the Pleistocene.

The American bison and European wisent are both descended from the steppe bison, Bison priscus, living in the middle Pleistocene mammoth steppe, which stretched across northern Eurasia and into North America. In North America, it evolved first into the late Pleistocene long-horned bison, Bison latifrons, and then into Bison antiquus, the direct ancestor of modern bison.

Pelorovis lived in East Africa and the Arabian Peninsula during the middle Pleistocene. It had horns which curved like those of sheep (hence the name, which means “monstrous sheep”). The closely related genus Syncerus includes the living African buffalo as well as the giant long-horned buffalo S. antiquus.

Aurochs

ST 30; DX 9; IQ 3; HT 12.
HP 30; Will 11; Per 11; FP 12; Speed 5.25; Dodge 8; Move 5.
SM +2 (3 hexes), 3,300 lbs.

Horns (9): 3d+3 imp. Reach C, 1.
Slam (9): 1d−2 cr at Move 1, 1d−1 at Move 2-3, 1d at Move 4, 2d at Move 5-8, 3d cr at Move 9-10. See GURPS Basic Set, p. 371.
Trample (9): 3d+3 cr. Only against SM 0 or less (SM +1 or less if prone). Automatic hit for half damage on overrun. See GURPS Basic Set, p. 404.

Traits: Bad Sight (Low Resolution); Bad Temper (12); Discriminatory Smell; DR 2 (Tough Skin); DR 5 (Partial, skull); Night Vision 1; Peripheral Vision; Quadruped; Temperature Tolerance 3 (Cold); Ultrahearing; Wild Animal.
Skills: Survival (Plains)-12.

The above profile is for a bull Aurochs. For a cow (2,200 lbs.) reduce ST and HP to 26 and remove Bad Temper. Damage with horns or trample becomes 2d+4. Slam damage becomes 1d−2 at Move 1, 1d−1 at Move 2-3, 1d at Move 4-5, 2d at Move 6-9, 3d at Move 10.

As Aurochs became more scarce, they retreated into forest refuges. Change Survival specialty to (Woodlands) in the Holocene.

For Bubalus cebuensis (340 lbs.) reduce ST and HP to 14, SM to 0, DR (Tough Skin) to 1, DR (Partial, skull) to 3. Change Survival specialty to (Jungle). Damage with horns or trample becomes 1d+1. Slam damage becomes 1d−3 at Move 1, 1d−2 at Move 2-3, 1d−1 at Move 4-7, 1d at Move 8-10.

For a Bison priscus bull (2,200 lbs.) reduce ST and HP to 26. Damage with horns or trample becomes 2d+4. Slam damage becomes 1d−2 at Move 1, 1d−1 at Move 2-3, 1d at Move 4-5, 2d at Move 6-9, 3d at Move 10. A cow (1,500 lbs.) reduces ST and HP to 23, SM to +1 (2 hexes), DR to 1, skull DR to 4, and loses Bad Temper. Damage with horns or trample becomes 2d+3. Slam damage becomes 1d−3 at Move 1, 1d−2 at Move 2, 1d−1 at Move 3-4, 1d at Move 5-6, 2d at Move 7-10.

Bison latifrons use the same profiles as Aurochs, except their horns are Reach 2.

Bison antiquus use the same profiles as Aurochs.

For a Pelorovis bull (1,600 lbs.) reduce ST and HP to 23, SM to +1 (2 hexes), and DR (Tough Skin) to 1. Bad Temper self control roll is lowered to (9), remove Temperature Tolerance; Damage with horns or trample becomes 2d+3 cr. Slam damage becomes 1d−3 at Move 1, 1d−2 at Move 2, 1d−1 at Move 3-4, 1d at Move 5-6, 2d at Move 7-10. A cow (1,300 lbs.) reduces ST and HP to 22, SM to +1 (2 hexes), and DR (Tough Skin) to 1. Remove Temperature Tolerance. Damage with horns or trample becomes 2d+2 cr. Slam damage becomes 1d−3 at Move 1, 1d−2 at Move 2, 1d−1 at Move 3-4, 1d at Move 5-6, 2d at Move 7-10.

For a Syncerus antiquus bull (4,400 lbs.) increase ST and HP to 33. Reach with horns becomes 2. Bad Temper self control roll is lowered to (9), remove Temperature Tolerance; Damage with horns or trample becomes 3d+5. Slam damage becomes 1d−2 at Move 1, 1d−1 at Move 2-3, 1d at Move 4, 2d at Move 5-7, 3d at Move 8-10. A cow (1,500 lbs.) reduces ST and HP to 28. Reach with horns becomes 2. Remove Temperature Tolerance. Damage with horns or trample becomes 3d+2. Slam damage becomes 1d−2 at Move 1, 1d−1 at Move 2-3, 1d at Move 4-5, 2d at Move 6-8, 3d at Move 9-10.

Extinct Hyaenids in GURPS

The earliest Hyaenids were small, civet-like omnivores, which lived in the forests of Eurasia during the middle to late Miocene. Ictitherium was a little larger and more widespread than most, with some adaptations for crushing bone, while Plioviverrops was smaller and found only in Europe.

As the family grew and diversified in the late Miocene, some developed powerful bone-crushing jaws, while another branch (possibly descended from Plioviverops) became long-legged pursuit predators, showing parallel evolution with canines. The most successful and widespread genus of these “dog-like hyenas” was Chasmaporthetes, the “running hyena”. It emerged on the grasslands of central Asia during the late Miocene, from there spreading across Eurasia and Africa, reaching North America by the late Pliocene, where it survived until the early Pleistocene, long after going extinct elsewhere (except for an isolated population in Italy). Ikelohyena was another dog-like genus from early Pliocene Africa.

Percrocuta came from a lineage which split from the Hyaenids early and is subject to debate about whether it should be included within them or classed in its own family along with its close relative Dinocrocuta, the “dire hyena”. Both were large predators, with bone-crushing jaws, and lived throughout Africa and Eurasia during the Miocene.

Another group with bone-cracking jaws includes the ancestors of living hyenas (excluding the Aardwolf, which is descended from dog-like Hyaenids). Belbus was an early example from late Miocene Africa and south-eastern Europe, showing only moderate adaptations for biting through bone. Adcrocuta, from Eurasia around the same time, was larger and had stronger jaws. Pliocrocuta was a little smaller than Adcrocuta, but had a more powerful bite, and lived in Eurasia from the middle Pliocene to the early Pleistocene. Its range was inherited by Pachycrocuta, the “giant short-faced hyena”, which was extremely well suited to breaking strong bones and survived until the late Pleistocene.

Crocuta (which includes the spotted hyena, C. crocuta), evolved (probably from an ancestor shared with Adcrocuta) in Africa during the middle Pliocene. They were probably the first hyenas to hunt in packs. The earliest species, C. dietrichi, was slightly smaller than C. crocuta, but the Pleistocene “cave hyenas” C. spelaea (from Europe) and C. ultima (Asia) were much larger.

Ictitherium

ST 6; DX 13; IQ 4; HT 11.
HP 6; Will 10; Per 12; FP 11; Speed 6.00; Dodge 10; Move 9.
SM −2, 30 lbs.

Bite or Claw (13): 1d−4 cutting. Reach C.

Traits: Bad Sight (Low Resolution); Born Biter 1; Combat Reflexes; Discriminatory Smell; Night Vision 2; Parabolic Hearing 1; Quadruped; Strikine ST 1 (Bite only); Ultrahearing; Vibration Sense (Air; Short-Ranged 1); Wild Animal.
Skills: Climbing-15; Stealth-14; Survival (Woodlands)-12.

For Plioviverrops (10 lbs.) reduce ST and HP to 4, SM to −3, and remove Striking ST. Damage with bite or claw drops to 1d−6.

Chasmaporthestes

ST 8; DX 12; IQ 4; HT 12.
HP 8; Will 11; Per 12; FP 12; Speed 6.00; Dodge 10; Move 10.
SM −1, 60 lbs.

Bite (14): 1d−2 cutting. Reach C.

Traits: Bad Sight (Low Resolution); Born Biter 2; Combat Reflexes; Discriminatory Smell; Enhanced Move (Ground Speed 20); Parabolic Hearing 1; Reduced Consumption 2 (Cast-Iron Stomach); Quadruped; Striking ST 1 (Bite only); Ultrahearing; Wild Animal.
Skills: Running-13; Stealth-12; Survival (Plains)-12; Tracking-15.

Use the same profile for Ikelohyena.

Percrocuta

ST 11; DX 11; IQ 4; HT 13.
HP 11; Will 12; Per 12; FP 13; Speed 6.00; Dodge 9; Move 6.
SM 0 (2 hexes), 150 lbs.

Bite (13): 1d cutting. Reach C, 1.

Traits: Bad Sight (Low Resolution); Born Biter 2; Combat Reflexes; Discriminatory Smell; DR 1 (Tough Skin); Long Neck 1*; Night Vision 3; Parabolic Hearing 1; Reduced Consumption 2 (Cast-Iron Stomach); Quadruped; Striking ST 2 (Bite only); Ultrahearing; Wild Animal.
Skills: Brawling-13; Intimidation-13; Stealth-13; Survival (Plains)-12; Tracking-15.

* see GURPS Furries, p. 12.

This represents the larger species of Percrocuta. For smaller ones such as P. xixiaensis (80 lbs.) reduce ST and HP to 9, and bite damage to 1d−1.

For Dinocrocuta (440 lbs.) increase ST and HP to 15, SM to +1 (2 hexes), DR to 2, Striking ST to 4, and bite damage to 2d.

For Belbus (90 lbs.) decrease ST and HP to 9, and bite damage to 1d−1. Survival specialty becomes (Woodlands).

For Adcrocuta (140 lbs.) or Pliocrocuta (120 lbs.) decrease ST and HP to 10, and increase Striking ST to 3. Bite damage becomes 1d.

For Pachycrocuta (240 lbs.) increase ST and HP to 12, and Striking ST to 5. Reduce Born Biter to 1. Bite damage becomes 1d+2.

Crocuta dietrichi

ST 9; DX 12; IQ 4; HT 12.
HP 9; Will 12; Per 12; FP 12; Speed 6.00; Dodge 10; Move 8.
SM 0 (2 hexes), 150 lbs.

Bite (14): 1d cutting. Reach C, 1.

Traits: Bad Sight (Low Resolution); Born Biter 2; Chummy; Combat Reflexes; Discriminatory Smell; DR 1 (Tough Skin); Long Neck 1*; Night Vision 3; Parabolic Hearing 1; Reduced Consumption 2 (Cast-Iron Stomach); Reduced Consumption 1 (Water only); Quadruped; Striking ST 2 (Bite only); Ultrahearing; Wild Animal.
Skills: Brawling-14; Intimidation-12; Stealth-12; Survival (Plains)-12; Tactics-6; Tracking-15.

* see GURPS Furries, p. 12.

For C. spelaea or C. ultima (200 lbs.) increase ST and HP to 12, and Striking ST to 3. Add Temperature Tolerance 4 (Cold). Bite damage becomes 1d+1.

Stegosaurs in GURPS

A clade of herbivorous dinosaurs, known for their spinal plates, spiked tails, and tiny brains. Their heads were small and elongated, with beaks at the front and small chewing teeth inside fleshy cheeks. The shoulder girdle was very robust, with many species having horn-like spikes projecting from their shoulders. The torso widened and raised vertically from the shoulders to the hips, with the hind legs being significantly larger than the front ones. Their tails were held straight out, parallel to the ground, but were flexible in the horizontal plane, allowing them to swing the spiked tips (“thagomizers”) in a deadly arc.

The first known family of stegosaurians were the Huayangosauridae of middle Jurassic East Asia (eastern Laurasia at the time), such as Huayangosaurus and Bashanosaurus. These were the only members of the clade which seemed capable of running. They had small plates running in symmetrical rows down either side of their spines and long shoulder spikes. Their last, and largest, known member was Gigantspinosaurus, which lived in the late Jurassic and had huge shoulder spikes.

The larger Stegosaurids had diverged from the Huayangosauridae by the middle Jurassic, with Tuojiangosaurus being an early example. Its spinal plates were longer and more triangular than those of Huayangosaurids, and it had less flexible legs to support its greater weight. Another branch of Stegosaurids formed the Neostegosauria, which comprised two families: the Dacentrurinae and Stegosaurinae.

The Dacentrurinae had a wide distribution and were distinguished by the transformation of their rear spinal plates into spikes, and long necks. Adratiklit and Thyreosaurus lived in middle Jurassic North Africa (northern Gondwana), while the late Jurassic had Kentrosaurus in East Africa (central Gondwana), Dacentrurus in Europe (central Laurasia), and Miragaia in North America (western Laurasia).

Stegosaurines had broad, staggered spinal plates. In Yingshanosaurus, from middle Jurassic East Asia, these were fairly small and shoulder spikes were still present. Later members of the family had larger plates and no shoulder spikes. In East Asia these included the late Jurassic Jiangjunosaurus and early Cretaceous Wuerhosaurus. Late Jurassic North America had Hesperosaurus, and the famous Stegosaurus, which included the well-known S. stenops and the larger S. ungulatus.

Huayangosaurus

ST 21; DX 10; IQ 2; HT 12.
HP 21; Will 10; Per 10; FP 12; Speed 5.50; Dodge 8; Move 5.
SM +3 (3 hexes), 1,100 lbs.

Shoulder spike (10): 2d impaling. Reach 1. Limited arc, sides.
Thagomizer (10): 2d+2 impaling. Reach 2. Limited arc, rear.
Trample (10): 2d / 1d−2 crushing. See GURPS Basic Set, p. 404.

Traits: Bad Sight (Low Resolution); DR 3 (Tough Skin); Enhanced Move 1 (Ground Speed 10; Costs Fatigue, 1 FP/second); Night Vision 1; Peripheral Vision; Quadruped; Wild Animal.
Skills: Survival (Woodlands)-10.

Use the same profile for Bashanosaurus.

For Gigantspinosaurus (1,500 lbs.) increase ST and HP to 23, and shoulder spike Reach to 2. Damage increases to 2d+3 with a shoulder spike or thagomizer, 2d+1 / 1d−1 with a trample.

Tuojiangosaurus

ST 38; DX 9; IQ 2; HT 12.
HP 38; Will 10; Per 10; FP 12; Speed 4.00; Dodge 7; Move 5.
SM +4 (4 hexes), 7,000 lbs.

Shoulder spike (9): 4d impaling. Reach 1. Limited arc, sides.
Thagomizer (9): 4d+4 impaling. Reach 3. Limited arc, rear.
Trample (9): 4d / 2d−1 crushing. See GURPS Basic Set, p. 404.

Traits: Bad Sight (Low Resolution); DR 6 (Tough Skin); Night Vision 1; Peripheral Vision; Quadruped; Wild Animal.
Skills: Survival (Plains)-10.

For Yingshanosaurus (3,000 lbs.) reduce ST and HP to 29, SM to +3 (3 hexes), DR to 4, and thagomizer Reach to 2. Damage drops to 3d with the shoulder spikes, 3d+3 with the thagomizer, 3d / 1d with a trample.

Dacentrurus

ST 47; DX 9; IQ 2; HT 12.
HP 47; Will 10; Per 10; FP 12; Speed 4.00; Dodge 7; Move 5.
SM +4 (5 hexes), 13,000 lbs.

Long Spines (5): 1d impaling. Reach C. Attack as a free action. See GURPS Basic Set, p. 88.
Thagomizer (9): 5d+6 impaling. Reach 4. Limited arc, rear.
Trample (9): 5d+1 / 2d+1 crushing. See GURPS Basic Set, p. 404.

Traits: Bad Sight (Low Resolution); DR 7 (Tough Skin); Long Neck 1*; Night Vision 1; Peripheral Vision; Quadruped; Wild Animal.
Skills: Survival (Plains)-10.

* see GURPS Furries, p. 12.

For Adratiklit (8,800 lbs.) reduce ST and HP to 41, and DR to 6. Damage drops to 4d+6 with the thagomizer, 4d+2 / 2d−1 with a trample. Change Survival specialty to (Swampland).

For Thyreosaurus (7,000 lbs.) reduce ST and HP to 38, and DR to 6. Damage drops to 4d+4 with the thagomizer, 4d / 2d−1 with a trample. Change Survival specialty to (Woodlands).

For Kentrosaurus (2,500 lbs.) reduce ST and HP to 27, SM to +3 (3 hexes), and DR to 4. Damage drops to 3d+2 with the thagomizer, 3d−1 / 1d with a trample.

For Miragaia (3,300 lbs.) reduce ST and HP to 30, and DR to 5. Damage drops to 3d+3 with the thagomizer, 3d / 1d+1 with a trample.

Stegosaurus stenops

ST 39; DX 9; IQ 2; HT 12.
HP 39; Will 10; Per 10; FP 12; Speed 4.00; Dodge 7; Move 5.
SM +4 (4 hexes), 7,700 lbs.

Thagomizer (9): 4d+5 impaling. Reach 3. Limited arc, rear.
Trample (9): 4d+1 / 2d−1 crushing. See GURPS Basic Set, p. 404.

Traits: Bad Sight (Low Resolution); DR 6 (Tough Skin); Night Vision 1; Peripheral Vision; Quadruped; Wild Animal.
Skills: Survival (Plains)-10.

For S. ungulatus or Wuerhosaurus (9,000-9,300 lbs.) increase ST and HP to 42, DR to 7, and thagomizer Reach to 4. Damage increases to 4d+6 with the thagomizer, 4d+2 / 2d with a trample.

For Jiangjunosaurus (5,500 lbs.) reduce ST and HP to 35, and DR to 5. Damage drops to 4d+3 with the thagomizer, 4d−1 / 1d+2 with a trample.

For Hesperosaurus (7,700 lbs.) change Survival specialty to (Woodlands).

Tatzelwurms in GURPS

Tatzelwurm

The tatzelwurm (“paw-serpent”) is a legendary creature from the Alps. It has a broad snake-like body, a cat-like head, and a variable number of legs depending on the legend. Although covered in scales, it usually has a crest of bristles running down its spine. Its breath and bite carry deadly venom. Alternative names include stollenwurm (“tunnel serpent”), bergstutz (“mountain stump”), and praazlewurm (“serpent with arms”).

Tatzelwurm

ST 10; DX 11; IQ 4; HT 11.
HP 10; Will 12; Per 12; FP 11; Speed 6.00; Dodge 9; Move 6.
SM 0, 110 lbs.

Bite (13): 1d−2 impaling + follow-up 1d toxic (resisted by HT−3; Cyclic, 1 minute, 10 cycles). Reach C.
Breath (resisted by HT−3): Affects a cone 10 yards long with 5 yards terminal width. Blood Agent. Dissipation (+2 to resist at 3-4 yards, +3 at 5-6 yards, etc.).
Claw (13): 1d−2 cutting. Reach C.

Traits: Born Biter 1; DR 1 (Tough Skin); Horizontal; Night Vision 3; No Fine Manipulators; No Legs (Slithers); Parabolic Hearing 1; Vibration Sense (Air); Wild Animal.
Skills: Brawling-13; Stealth-13; Survival (Mountains)-13.

The above profile is for a two-legged creature. For a legless one, change No Fine Manipulators to No Manipulators and remove the claw attack. For a four-legged beast which can walk upright, remove Horizontal and No Legs, and add Semi-Upright. Versions with more legs exchange No Legs for Extra Legs.

Entelodonts in GURPS

Nicknamed ‘terminator hogs’ or ‘hell pigs’, entelodonts superficially resembled long-legged wild boar or warthogs, but were actually more closely related to hippos and cetaceans. Their long jaws were capable of both gaping wide and biting with extreme force. They are believed to have been omnivores, favoring nuts, fruit, roots, and carrion, but able and willing to take live prey when the opportunity arose. Wounds apparently inflicted by others of their kind indicate considerable social competition, suggesting they lived in groups.

Early Enteleodonts were fairly small. Brachyhyops was a pig-sized animal which emerged in South Asia during the middle Eocene and spread from there across Asia and into North America by the late Eocene. In North America, it may have evolved into Archaeotherium, which varied in size by species and lived from the late Eocene to the early Oligocene. A. mortoni was no larger than most deer, but A. zygomaticus was the size of a moose.

Entelodon thrived throughout Eurasia from the late Eocene to the early Oligocene. Most species within the genus were donkey-sized, but E. major and E. gobiensis from east Asia were the size of horses.

As the Oligocene climate cooled, even larger genera evolved, including the giant Paraentolodon of Central Asia and its slightly smaller North American relative Daeodon. The latter managed to survive into the early Miocene, while the Eurasian lineages were all extinct by the end of the Oligocene.

Brachyhyops

ST 10; DX 12; IQ 3; HT 12.
HP 10; Will 10; Per 12; FP 12; Speed 6.00; Dodge 9; Move 8.
SM 0, 140 lbs.

Bite (14): 1d−1 cutting. Reach C.

Traits: Acute Smell 3; Bad Sight (Low Resolution); Born Biter 3; Chummy; Discriminatory Smell; DR 1 (Tough Skin); Night Vision 1; Parabolic Hearing 1; Reduced Consumption 2 (Cast-Iron Stomach); Striking ST 1 (Bite Only); Quadruped; Wild Animal.
Skills: Brawling-14; Stealth-13; Survival (Woodlands)-13.

Entelodon

ST 16; DX 11; IQ 3; HT 11.
HP 16; Will 12; Per 11; FP 11; Speed 5.50; Dodge 8; Move 6.
SM 0 (2 hexes), 500 lbs.

Bite (13): 2d cutting. Reach C.
Trample (11): 1d+3 / 1d−1 crushing. See GURPS Basic Set, p. 404.

Traits: Acute Smell 3; Bad Sight (Low Resolution); Born Biter 3; Chummy; Discriminatory Smell; DR 2 (Tough Skin); Enhanced Move 1 (Ground Speed 12); Night Vision 1; Parabolic Hearing 1; Reduced Consumption 2 (Cast-Iron Stomach); Striking ST 3 (Bite Only); Quadruped; Wild Animal.
Skills: Brawling-13; Survival (Woodlands)-12.

For E. major (1,000 lbs.) increase ST and HP to 20, SM to +1 (3 hexes), and DR to 3. Damage increases to 2d+2 with a bite, 2d+3 / 1d with a trample. E. gobiensis (1,400 lbs.) increases ST and HP to 22, SM to +1 (3 hexes), and DR to 3. Damage increases to 2d+3 with a bite, 2d+4 / 1d+1 with a trample.

For Archaeotherium mortoni (330 lbs.) reduce ST and HP to 14, dropping damage to 1d+2 with a bite, 1d+2 / 1d−1 with a trample. A. zygomaticus (1,100 lbs.) increases ST and HP to 21, SM to +1 (3 hexes), and DR to 3. Damage increases to 2d+3 with a bite, 2d+4 / 1d with a trample.

For Paraentelodon (2,000 lbs.) increase ST and HP to 25, SM to +2 (4 hexes), DR and Striking ST to 4. Damage increases to 3d+2 with a bite (which has Reach C, 1), 2d+6 / 1d+1 with a trample.

For Daeodon (1,500 lbs.) increase ST and HP to 23, SM to +2 (4 hexes), DR and Striking ST to 4. Damage increases to 3d+1 with a bite (which has Reach C, 1), 2d+5 / 1d+1 with a trample. Change Survival specialty to (Plains).

Colossal Crayfish in GURPS

Colossal crayfish are only distantly related to crayfish and lobsters, and have highly divergent anatomy. Notably, they are much larger, almost ten feet in length. Their circulatory and respiratory systems are significantly more complex than those of other crustaceans, and their nervous system and eyes are also more developed. In many ways they are an example of convergent evolution with eurypterids (‘sea scorpions’).

They have four pairs of walking legs, one pair of pincers, and a cluster of claw-like mouthparts under their pointed heads. Their tails are powerful and end in a fan of plates which can propel them rapidly underwater. Two protruding compound eyes and four antennae give them the ability to navigate through murky environments.

Their preferred habitats are muddy freshwater ones. Although they are mostly scavengers, colossal crayfish are more inclined to take live prey than most crustaceans and will even try to snatch it from the shore. Once a food item has been seized in their pincers, they typically drag it back to their underwater burrows before tearing it apart.

Colossal Crayfish

ST 20; DX 9; IQ 1; HT 11.
HP 20; Will 10; Per 10; FP 10; Speed 5.00; Dodge 8; Move 5.
SM +1 (3 hexes), 1,000 lbs.

Bite (11): 2d cutting. Reach C.
Claw (11): 2d+2 crushing. Reach C-1.
Grapple (11): Effective ST 22. Reach C-1.
Wrench Limb (18): 3d+8 crushing. Requires grapple with both claws, followed by quick contest vs. better of ST or HT. Ignores flexible DR. See GURPS Martial Arts, p. 82.

Traits: Amphibious; Bad Sight (Low Resolution); Doesn’t Breathe (Gills only); DR 4; Extra Legs (Eight Legs); Injury Tolerance (No Brain, No Neck); Good Grip 1; Ham-Fisted 2; Night Vision 3; Numb (Not on Antennae); Peripheral Vision; Reduced Consumption 3 (Cast-Iron Stomach); Vibration Sense (Water); Wild Animal.
Skills: Brawling-11; Survival (Fresh-Water Lake)-11; Wrestling-11.

Cave Lions in GURPS

The lineage of these big cats split from that of modern lions (Panthera leo) at the start of the middle Pleistocene. The first species to emerge after the split was the colossal Panthera fossilis, which rapidly became the dominant apex predator throughout Eurasia. By the late Pleistocene, it had evolved into two smaller species, the Steppe Lion, P. spelaea, which lived in Eurasia and Alaska and the American Lion, P. atrox, which claimed the warmer parts of North America. P. spelaea continued to shrink over time, eventually becoming smaller than P. leo. Both species went extinct during the end Pleistocene extinction event.

Cave art shows that P. spelaea males had no mane and hair samples indicate they were a little paler than P. leo. Remains attributed to P. atrox show reddish fur. Their social behaviour is unknown, but some evidence suggests that P. atrox lived in prides, while P. spelaea was either solitary or lived as breeding pairs with their cubs.

Panthera fossilis

ST 20; DX 13; IQ 4; HT 11.
HP 20; Will 11; Per 12; FP 10; Speed 6.00; Dodge 10; Move 8.
SM +1 (three hexes), 1,000 lbs.

Bite (15): 2d cutting. Reach C.
Claw (15): 2d cutting. Reach C-1.

Traits: Bad Sight (Low Resolution); Born Biter 2; Catfall; Combat Reflexes; Discriminatory Smell; DR 2 (Tough Skin); Enhanced Move 1 (Ground Speed 16; Costs Fatigue, 1 FP/second); Flexibility; Night Vision 2; Parabolic Hearing 1; Penetrating Voice; Quadruped; Silence 1; Temperature Tolerance 2 (Cold); Ultrahearing; Vibration Sense (Air); Wild Animal.
Skills: Brawling-15; Running- 14; Stealth-13; Survival (Plains)-12.

The above profile is for a male. Females (700 lbs.) have ST and HP 18 and do 1d+2 damage with a bite or claw.

P. atrox males (550 lbs.) reduce ST and HP to 16, DR and Temperature Tolerance to 1. Females reduce ST and HP to 16, DR and Temperature Tolerance to 1. Both do 1d+1 damage with a bite or claw.

Early P. spelaea use the same profiles as P. atrox, except their Temperature Tolerance remains at 2. Later P. spelaea males (200 lbs.) reduce ST and HP to 12, SM to 0, DR and Temperature Tolerance to 1. Females (150 lbs.) reduce ST and HP to 11, SM to 0, DR and Temperature Tolerance to 1. Both do 1d−1 damage with a bite or claw, which have reach C.

Rhizodontid fish in GURPS

These lobe-finned fishes were the apex predators of many freshwater ecosystems during the Devonian and Carboniferous. They were closely related to amphibians and probably able to survive out of water for some time. It is speculated that in addition to eating other fish, they took prey from the land by lunging out of the water like crocodiles.

Their small fins were mostly clustered by the tail, with only the pectoral fins near their heads. Their jaws were wide, powerful, and sported long fangs at the front. Rhizodus was the largest of them, the size of a great white shark, and lived in western Pangaea (its fossils were found in America, Britain, and Russia) during the early Carboniferous. Strepsodus was only the size of a tiger shark, and shared Rhizodus’ territory, but seems to have been more widely distributed, with fossils known from Australia, Columbia, Iran, and Turkey. During the late Devonian, the islands which would one day become northern China hosted the moderately sized Hongyu. Gooloogongia was a much smaller creature from eastern Gondwana (Australia) around the same time. During the early Cretaceous eastern Gondwana was home to two species of Barameda. B. mitchelli was even smaller than Gooloogongia, but B. decipens was ten times its size.

Rhizodus

ST 28; DX 10; IQ 2 HT 12.
HP 28; Will 11; Per 11; FP 12; Speed 5.50; Dodge 8; Move 5.
SM +3 (6 hexes), 2,800 lbs.

Bite (12): 3d+3 impaling. Reach C.

Traits: Bad Sight (Low Resolution); Born Biter 1; Doesn't Breathe (Gills); DR 3 (Tough Skin); Injury Tolerance (No Neck); No Legs (Semi-Aquatic; Ground Speed 1); No Manipulators; Peripheral Vision; Striking ST 3 (Bite Only); Wild Animal.
Skills: Brawling-12; Swimming-15; Survival (Fresh-Water Lake)-12.

For Strepsodus or Barameda decipiens (700 lbs.) reduce ST and HP to 18, SM to +2 (4 hexes), DR and Striking ST to 2, and bite damage to 2d.

For Barameda mitchelli (1 lbs.) reduce ST and HP to 2, SM to −4, and remove DR and Striking ST. Bite damage becomes 1d−6.

For Gooloogongia (9 lbs.) reduce ST and HP to 4, SM to −2, DR and Striking ST to 1, and bite damage to 1d−4.

For Hongyu (60 lbs.) reduce ST and HP to 8, SM to 0 (2 hexes), DR and Striking ST to 1, and bite damage to 1d−2.

Prehistoric bears in GURPS

Bears first emerged as a distinct family in early Miocene Europe. The earliest recognised species, Ursavus elmensis (sometimes assigned to the genus Ballusia), was tiny in comparison to its living relatives, resembling a wolverine. Other species of Ursavus lived throughout Eurasia and ranged from the size of a cat to that of a wolf.

The first major split in the family was between the ailuropodines and other bears. Although the only surviving ailuropodine is the herbivorous giant panda, the sub-family once included ferocious predators. Indarctos was a mid-sized omnivore with a wide distribution, found in Eurasia, North Africa, and North America from the middle to late Miocene. Its giant relative Agriotherium had long limbs and short, powerful jaws, suitable for grinding tough plants and bone. It lived in Africa and Eurasia during the late Miocene. Huracan was another large, long-legged ailuropodine with a strong bite, which lived in East Asia and North America from the late Miocene to early Pleistocene.

The next division was between the ursine bears and the tremarctine or short-faced bears of the Americas. The latter sub-family include the living Tremarctos ornatus, the spectacled bear, and its extinct relative T. floridanus, the Florida spectacled bear, which lived in the southern United States and northern Mexico during the late Pleistocene. They evolved from Plionarctus, which lived in the United States from the late Miocene to the early Pleistocene. Another of its descendants, Arctodus pristinus, the ‘lesser short-faced bear’ was about the size of a modern brown bear and lived in the grasslands and flatwoods of the eastern United States during the early Pleistocene. A trend towards greater size led to the evolution of the ‘greater short-faced bear’ A. simus which spread through North America during the middle Pleistocene, lasting until the late Pleistocene. In South America, Arcototherium followed an opposite trend, starting with the huge and highly predatory A. angustidens from the ‘southern cone’ of South America in the middle Pleistocene, and culminating in the smaller and more herbivorous A. wingei, which survived in northern South America and Central America until the early Holocene. Despite the name, the jaws of short-faced bears were just as long as those of other bears, but appear shorter due to being relatively deep.

The earliest known ursine was the small Aurorarctos, the ‘dawn bear’ (a name also sometimes used for Ursavus elmensis), from the Midwestern United States during the middle Miocene. It gave rise to Protarctos, a larger bear which spread across North America and Eurasia during the Pliocene and early Pleistocene. Protarctos evolved into Ursus minimus, the Auvergne bear, in Europe. U. minumus in turn evolved into the middle Pleistocene Etruscan bear, U. etruscus, which thrived throughout Eurasia. U. etruscus was the ancestor of the modern brown bear (U. arctos), polar bear (U. maritimus), and late Pleistocene cave bears, U. spelaeus (sometimes interpreted as a species complex, adding U. rossicus, U. ingressus, U. kanivets, U. kudarensis, and U. eremus to the mix). These latter lived in Europe and were generally larger than modern bears. However, brown bears also attained larger sizes in the ice age, such as the ‘steppe brown bear’, U. arctos priscus, of central Europe. A single fragmentary bone from late Pleistocene England has been interpreted as a giant subspecies of polar bear, U. maritimus tyrannus, although it could also be from a huge brown bear.

Ursavus elmensis

ST 7; DX 12; IQ 4; HT 12.
HP 7; Will 11; Per 11; FP 12; Speed 6.00; Dodge 10; Move 6.
SM −1, 40 lbs.

Bite or Claw (14): 1d−3 cutting. Reach C.

Traits: Acute Smell 2; Born Biter 1; Combat Reflexes; Discriminatory Smell; DR 1 (Tough Skin); Night Vision 2; No Fine Manipulators; Semi-Upright; Temperature Tolerance 1; Ultrahearing; Wild Animal.
Skills: Brawling-14; Climbing-15; Stealth-13; Survival (Woodlands)-12.

This profile works without modification for Aurorarctos. For larger species of Ursavus, like U. tedfordi (90 lbs.), raise ST and HP to 9, SM to 0, and damage to 1d−2. Small species, like U. orientalis (10 lbs.) reduce ST and HP to 4, SM to −4, and damage to 1d−5.

Ursus spelaeus

ST 20; DX 11; IQ 4; HT 13.
HP 20; Will 11; Per 11; FP 13; Speed 6.00; Dodge 9; Move 8.
SM +1 (2 hexes), 1,000 lbs.

Bite (13): 2d cutting. Reach C.
Claw (13): 2d cutting. Reach C-1.

Traits: Acute Smell 2; Born Biter 1; Discriminatory Smell; DR 3 (Tough Skin); Enhaced Move 1 (Ground Speed 16); Night Vision 2; No Fine Manipulators; Semi-Upright; Temperature Tolerance 3; Ultrahearing; Wild Animal.
Skills: Brawling-13; Intimidation-12; Stealth-11; Survival (Plains)-12.

This profile represents a male. For a female (500 lbs.) reduce ST and HP to 16, DR to 2, and damage with both bite and claw to 1d+1.

For a male Indarctos (600 lbs.) reduce ST and HP to 17, DR to 2, and damage with both bite and claw to 1d+2. For a female (300 lbs) reduce ST and HP to 13, SM to 0, DR to 2, and damage with both bite and claw to 1d. Claw reach becomes C.

For a male Agriotherium (1,400 lbs.) increase ST and HP to 22 and damage with both bite and claw to 2d+1. Use the male U. spelaeus profile without modification for a female Agriotherium.

For a male Huracan (1,100 lbs.) increase ST and HP to 21 and damage with both bite and claw to 2d+1. For a female (900 lbs) reduce ST and HP to 19.

For a male Tremarctos floridanus (450 lbs.) reduce ST and HP to 15, DR to 2, and damage with both bite and claw to 1d+1. For a female (350 lbs) reduce ST and HP to 14, SM to 0, DR to 2, and damage with both bite and claw to 1d. Claw reach becomes C.

For a male Plionarctus (320 lbs.) reduce ST and HP to 14, SM to 0, DR to 2, and damage with both bite and claw to 1d. For a female (220 lbs) reduce ST and HP to 12, SM to 0, DR to 2, and damage with both bite and claw to 1d−1. Both have claw reach C, and change Survival specialty to (Woodlands).

For a male Arctodus pristinus (700 lbs.) reduce ST and HP to 18 and damage with both bite and claw to 1d+2. For a female (500 lbs) reduce ST and HP to 16, and damage with both bite and claw to 1d+1.

For a male Arctodus simus (1,800 lbs.) increase ST and HP to 24, SM to +2 (3 hexes), DR to 4, and damage with both bite and claw to 2d+2. For a female (1,100 lbs) increase ST and HP to 21.

For a male Arctotherium angustidens (2,100 lbs.) increase ST and HP to 26, SM to +2, DR to 4, and damage with both bite and claw to 2d+3. For a female (1,500 lbs) increase ST and HP to 23, SM to +2 (3 hexes), and damage with both bite and claw to 2d+2.

For a male Arctotherium wingei (260 lbs.) reduce ST and HP to 13, SM to 0, DR to 2, and damage with both bite and claw to 1d. For a female (180 lbs) reduce ST and HP to 11, SM to 0, DR to 1, and damage with both bite and claw to 1d−1. Claw reach for both becomes C.

For a male Protarctos or Ursus minimus (280 lbs.) reduce ST and HP to 13, SM to 0, DR to 2, and damage with both bite and claw to 1d. For a female (200 lbs) reduce ST and HP to 12, SM to 0, DR to 2, and damage with both bite and claw to 1d−1. Claw reach becomes C for all.

Use the Ursus spelaeus profiles for U. etruscus.

For a male Ursus arctus priscus (1,600 lbs.) increase ST and HP to 23, SM to +2, and damage with both bite and claw to 2d+2. For a female (800 lbs) reduce ST and HP to 19. Use these profiles for Ursus maritimus tyrannus if interpreted as a large brown bear. For a polar bear, increase Temperature Tolerance to 4, change Survival specialty to (Arctic), and add Swimming-13 to skills.

Macroeuphractus in GURPS

While most armadillos will eat small vertebrates and scavenge carrion, Macroeuphractus' teeth suggest it was a more aggressive predator, capable of taking relatively large prey. It lived in Argentina and Boliva from the late Miocene to the late Pliocene. Like its living relatives, it had sturdy claws for digging and was protected by bands of scaly armour.

Macroeuphractus

ST 8; DX 10; IQ 3; HT 10.
HP 8; Will 11; Per 11; FP 10; Speed 5.00; Dodge 8; Move 5.
SM −1, 70 lbs.

Bite (12): 1d−3 cutting. Reach C.
Claw (12): 1d−2 crushing. Reach C.

Traits: Bad Sight (Low Resolution); Discriminatory Smell; DR 4 (Directional, Back); Enhanced Move 1 (Ground Speed 10; Costs Fatigue, 1 FP/Second); Night Vision 2; Parabolic Hearing 1; Peripheral Vision; Quadruped; Wild Animal.
Skills: Brawling-12; Survival (Plains)-12.

This represents a modest size estimate. Some have suggested a weight of up to 220 lbs. Such a creature would have ST and HP 12, SM 0, DR 6, and do 1d−1 damage with a bite, or 1d with a claw.

Extinct hippos in GURPS

There are several known extinct species of Hippopotamus, in addition to the living H. amphibias. H. antiquus lived from the early to middle Pleistocene, with a range covering most of Europe, reaching as far into Asia as Georgia. It seems to have spent even more time in the water than its relatives. By contrast, its small descendant, the Cretan dwarf hippo, H. creutzburgi, was mostly terrestrial. During the same period, H. gorgops inhabited the rivers of East and North Africa, and the Levant.

In the middle to late Pleistocene H. melitensis lived on Malta, while H. pentlandi occupied Sicily. Although both were 'dwarf' species, they weren't much smaller than modern hippos. The Cypriot dwarf hippo H. minor, however, was quite diminutive and survived into the early Holocene. On Madagascar, another dwarf species, H. lemerlei, lasted until around 1,000 years ago.

Hippopotamus antiquus

ST 38; DX 9; IQ 3; HT 13.
HP 38; Will 11; Per 11; FP 13; Speed 4.00; Dodge 7; Move 4.
SM +3 (14 hexes), 7,000 lbs.

Bite (12): 4d+3 impaling. Reach C.
Trample (12): 4d+4 crushing.

Traits: Bad Sight (Low Resolution); Born Biter 3; Breath Holding 2; DR 4; Enhanced Move 1 (Ground Speed 8); Night Vision 2; Parabolic Hearing 2; Peripheral Vision; Quadruped; Subsonic Hearing; Terrain Adaptation (Mud); Wild Animal.
Skills: Brawling-11; Survival (River/Stream)-12.

For H. creutzburgi (900 lbs.) decrease ST and HP to 19, SM to +1 (2 hexes), and DR to 2. Add half a level of Enhanced Move (Ground Speed 12). Damage becomes 2d with a bite, 2d+1 with a trample.

For H. gorgops (9,000 lbs.) increase ST and HP to 42, which raises damage to 4d+5 with a bite or 4d+6 with a trample.

For H. melitensis or H. pentlandi (both about 2,200 lbs.) decrease ST and HP to 26, SM to +2 (4 hexes), and DR to 3. Damage becomes 2d+3 with a bite, 2d+4 with a trample.

For H. minor (300 lbs.) decrease ST and HP to 12, SM to 0 (2 hexes), and DR to 1. Damage becomes 1d with a bite, 1d+1 with a trample.

For H. lemerlei (1,000 lbs.) decrease ST and HP to 20, SM to +1 (2 hexes), and DR to 2. Damage becomes 2d with a bite, 2d+1 with a trample.

Macroraptorial physeteroid whales in GURPS

These relatives of modern sperm whales were more like orca in their habits, hunting large prey close to the surface. They thrived throughout the Miocene. The largest and most famous was Livyatan, which inhabited the southern Oceans, sharing its habitat with the giant shark Megalodon. Its smaller relatives were Acrophyseter which lived in the south-east Pacific (its remains were found in Peru), Albicetus in the north-east Pacific (California), Brygmophyseter in the north-west Pacific (Japan), Zygophyseter in the Mediterranean (Italy), and Scaldicetus, which may have had a world-wide distribution, or be a 'wastebasket taxon' of multiple only somewhat related whales.

Livyatan

ST 100; DX 10; IQ 5; HT 11.
HP 100; Will 11; Per 11; FP 11; Speed 4.00; Dodge 7; Move 4.
SM +6 (39 hexes), 125,000 lbs.

Bite (12): 11d+10 impaling. Reach C.
Tail (12): 11d+22 crushing. Reach 1-6. Limited Arc, Rear.

Traits: Absolute Direction; Acute Hearing 2; Bad Sight (Low Resolution); Born Biter 3; Colorblindness; Doesn't Breathe (Oxygen Storage ×100; Doesn't Sleep (Temporary Disadvantage, −4 IQ); DR 10; DR 10 (Limited, Crushing; Partial, Skull Only); Enhanced Move 2 (Water Speed 16); Injury Tolerance (No Neck); Nictitating Membrane 1; Night Vision 2; No Depth Perception; No Legs (Aquatic); No Manipulators; Peripheral Vision; Pressure Support 1; Sonar (Water Only; Extended Arc, 240°; Reduced Range, 1,000 yards); Temperature Tolerance 10; Wild Animal.
Skills: Brawling-12; Survival (Open Ocean)-12.

For Albicetus, Brygmophyseter, Zygophyseter, and Scaldicetus (all about 6,000 lbs.) reduce ST and HP to 36, SM to +4 (8 hexes), both types of DR to 4, and Temperature Tolerance to 4. Damage becomes 4d+2 with a bite, 4d+7 with the tail, which has Reach 1-3.

For Acrophyseter (1,800 lbs.) reduce ST and HP to 24, SM to +2 (5 hexes), both types of DR to 3, and Temperature Tolerance to 3. Damage becomes 2d+2 with a bite, 2d+5 with the tail, which has Reach 1-2.

Dinopithecus and other giant prehistoric monkeys in GURPS

The Papionini include the living baboons, geladas, macaques, mandrills, and mangabeys. Some extinct genera in the family were significantly larger than their living relatives. These were ground-dwelling social animals, living in troops led by a dominant male. The males probably had colourful patches on their faces, chests, and buttocks and were significantly larger than females. They would have eaten a mixed diet of fruit, leaves, seeds, roots, and small prey.

Dinopithecus was the most closely related to baboons, and lived in South Africa during the early Pleistocene. Theropithecus has one surviving species, the gelada of Ethiopia. T. oswaldi was much more widely distributed, occupying much of Africa and south-western Eurasia during the early to middle Pleistocene. T. brumpti is known only from Ethiopia during the late Pliocene. Gorgopithecus lived in South Africa and Tanzania during the Pliocene and early Pleistocene.

Dinopithecus

ST 10; DX 12; IQ 5; HT 11.
HP 10; Will 11; Per 11; FP 11; Speed 6.00; Dodge 9; Move 8.
SM 0, 110 lbs.

Bite (14): 1d−1 impaling. Reach C

Traits: Born Biter 1; Chummy; Extra Arms 2 (Foot Manipulators); Ham-Fisted 1; Semi-Upright; Wild Animal.
Skills: Brawling-14; Climbing-12; Intimidation-12; Survival (Plains)-12.

This profile is for a male. Females (60 lbs.) reduce ST and HP to 8, SM to −1, and lose the Brawling and Intimidation skills. Bite damage becomes 1d−3.

Theropithecus brumpti would have the same profiles as Dinopithecus. T. oswaldi males (160 lbs.) increase ST and HP to 11, raising bite damage to 1d. T. oswaldi females (90 lbs.) reduce ST and HP to 9, and lose the Brawling and Intimidation skills. Bite damage becomes 1d−2.

Gorgopithecus males (80 lbs.) reduce ST and HP to 9. Females (45 lbs.) reduce ST and HP to 7, and lose the Brawling and Intimidation skills. Bite damage becomes 1d−3.

Megalosaurs in GURPS

A group of large theropod carnivores, closely related to the spinosaurs. They emerged during the early Jurassic, diversified in the middle Jurassic, and died off around the start of the Cretaceous. They had large heads, slender bodies, and long tails. Their arms had three claws, while their feet had four, although one of the latter was a small dewclaw. Unlike many of their relatives, their faces usually lacked horns or ridges. Their size combined with the warm Jurassic climate suggests that they would have little need for insulation as adults, and they have traditionally been portrayed with bare, scaly skin, but simple hair‐like proto‐feathers are also plausible, especially for juveniles.

Megalosaurus bucklandii was a fairly typical member of the family which lived in central Laurasia (in what is now Britain) during the middle Jurassic. It was the first dinosaur to be given a binomial scientific name. Poekilopleuron bucklandii may be a closely related genus, another species of Megalosaurus, or a somewhat larger individual of the same species. Duriavenator and the larger Wiehenvenator were also closely related and come from around the same time and place. Torvosaurus was another close relative, from later in the Jurassic and further west (in what is now the United States), which reached a similar size to Wiehenvenator

The relationships between other megalosaurids are less clear. Eustreptospondylus lived close to Megalosaurus around the same time, but was only distantly related. Afrovenator was a large predator which lived in the jungles of northern Gondwana (now Niger) from the middle to late Jurassic. It seems to have been closely related to Dubreuillosaurus and Magnosaurus which lived in Laurasia (now France and Britain, respectively) during the middle Jurassic. The huge Piveteausaurus from central Laurasia (now France) during the late Jurassic may be related to the smaller Leshansaurus from eastern Laurasia (now China) during the middle Jurassic, but it isn't clear if they are even megalosaurids.

Megalosaurus

ST 23; DX 11; IQ 3; HT 11.
HP 23; Will 10; Per 12; FP 11; Speed 5.50; Dodge 8; Move 5.
SM +2 (3 hexes), 1,600 lbs.

Bite (13): 2d+2 cutting. Reach C.
Fore‐claw (13): 1d−1 cutting. Reach C.
Kick (11): 2d+3 cutting. Reach C.
Tail (11): 2d+3 crushing. Reach 1–3. Limited arc (rear).

Traits: Born Biter 2; Discriminatory Smell; DR 2 (Tough Skin); Enhanced Move 1 (Ground Speed 10; Costs Fatigue, 1 FP/Second); Night Vision 1; No Fine Manipulators; Weak Arms 2 (½ ST); Wild Animal.
Skills: Brawling–13; Stealth–11; Survival (Island/Beach)–12; Swimming–12.

For Poekilopleuron or Duriavenator(2,200 lbs.) increase ST and HP to 26, SM to +3 (4 hexes), and damage to 2d+3 with a bite, 1d with fore‐claw, and 2d+4 with kick or tail.

For Wiehenvenator (4,400 lbs.) increase ST and HP to 33, SM to +3 (5 hexes), DR to 3, damage to 3d+4 with a bite, 1d+2 with fore‐claw, and 3d+5 with kick or tail, and tail reach to 1–4.

For Torvosaurus (4,400 lbs.) increase ST and HP to 33, SM to +3 (5 hexes), DR to 3, damage to 3d+4 with a bite, 1d+2 with fore‐claw, and 3d+5 with kick or tail, and tail reach to 1–4. Change Survival specialty to (Plains).

For Eustreptospondylus (1,100 lbs.) reduce ST and HP to 21, and damage to 2d+1 with a bite, 1d−1 with fore‐claw, and 2d+2 with kick or tail.

For Afrovenator (3,300 lbs.) increase ST and HP to 30, SM to +3 (4 hexes), DR to 3, and damage to 2d+3 with a bite, 1d+1 with fore‐claw, and 2d+4 with kick or tail. Change Survival specialty to (Jungle).

For Dubreuillosaurus (750 lbs.) reduce ST and HP to 18, DR to 1, and damage to 1d+2 with a bite, 1d−2 with fore‐claw, and 1d+3 with kick or tail. Change Survival specialty to (Swampland).

For Magnosaurus (500 lbs.) reduce ST and HP to 16, DR to 1, and damage to 1d+1 with a bite, 1d−3 with fore‐claw, and 1d+2 with kick or tail.

For Piveteausaurus (8,000 lbs.) increase ST and HP to 40, SM to +4 (6 hexes), DR to 4, damage to 4d+4 with a bite, 2d−1 with fore‐claw, and 4d+5 with kick or tail, and tail reach to 1–5.

For Leshansaurus (1,600 lbs.) change Survival specialty to (Woodlands).

Alternative Interpretations

Megalosaurus fossils were first understood as the remains of elephants or giants. When some reptilian features were recognized, it was described as a huge, amphibious, lizard‐like quadruped, 40 feet long, 8 feet at the shoulder, and weighing as much as an elephant. Later estimates gave sizes from 30 up to 70 feet in length. A sculpture by Benjamin Waterhouse Hawkins based on this description can be found among the Crystal Park Dinosaurs.

Megalosaurus (Quadrupedal Reptile)

ST 43; DX 8; IQ 2; HT 12.
HP 43; Will 10; Per 10; FP 12; Speed 5.00; Dodge 8; Move 5.
SM +5 (21 hexes), 10,000 lbs.

Bite or Claw (10): 5d+3 cutting. Reach C.
Tail (8): 5d+4 crushing. Reach 1–4 Limited arc (rear).

Traits: Amphibious; Bad Sight (Low Resolution); Born Biter 1; Cold‐Blooded (65°F); Discriminatory Smell; DR 4 (Tough Skin); Night Vision 1; Quadruped; Wild Animal.
Skills: Brawling–10; Survival (Island/Beach)–12; Swimming–15.

This represents the 40 foot version. For a 70 foot colossus (26 tons), increase ST and HP to 75, SM to +7 (36 hexes), DR to 7, damage to 8d+9 with a bite or claw and 8d+10 with the tail, and tail reach to 1–7. A 30 foot beast (2 tons) would have ST and HP 32, SM +4, DR 3, do 3d+3 damage with a bite or claw, and 3d+4 with its tail, which would have a reach of 1–3.

Litopterns in GURPS

An order of odd-toed ungulates (distantly related to horses and tapirs) which evolved in South America during the late Paleocene. They thrived in the warm climate of the Paleocene and Eocene, but as global temperatures dropped, their numbers declined. Nevertheless, some survived as late as the Holocene and were hunted by humans.

Painting of Theosodon and Borhyaena
Theosodon garretorum and Borhyaena tuberata by Charles R. Knight (1913).

Protolipternidae

Early litopterns resembled chevrotains (also known as mouse-deer), with slender legs, short tails, and fang-like canines. Their feet were closer to tapirs’ paws than hooves, however, and they were omnivorous. Protolipterna was a rabbit-sized animal, while its larger relative Asmithwoodwardia was as big as a hare. Both lived in South America during the late Paleocene and early Eocene.

Protolipterna

ST 3; DX 13; IQ 3; HT 11.
HP 3; Will 10; Per 12; FP 11; Speed 6.00; Dodge 9; Move 6.
SM −4, 2 lbs.

Bite (13): 1d−6 impaling. Reach C.

Traits: Bad Sight (Low Resolution); Discriminatory Smell; Enhanced Move 1 (Ground Speed 12; Costs Fatigue, 1 FP/Second); Night Vision 2; Quadruped; Wild Animal.
Skills: Stealth-14; Survival (Woodlands)-12.

Asmithwoodwardia (10 lbs.) increases ST and HP to 4, and SM to −3.

Sparnotheriodontidae

A family of browsing herbivores. They are the only litopterns known from outside South America, having crossed the land bridge to Antarctica. Sparnotheriodon (from Argentina) and Victorlemoinea (from Antarctica and South America) are either different names for the same genus, or close relatives. Both were moose-sized animals and lived during the Eocene. Notiolofos was an Antarctic genus, consisting of the large N. arquinotiensis, which lived through the Eocene, and sheep-sized N. regueroi, which is only known from the early Eocene.

Sparnotheriodon

ST 19; DX 11; IQ 3; HT 11.
HP 19; Will 10; Per 12; FP 11; Speed 5.50; Dodge 8; Move 5.
SM +2 (3 hexes), 900 lbs.

Kick (9): 2d+1 crushing. Reach C-2.

Traits: Bad Sight (Low Resolution); Discriminatory Smell; DR 1 (Tough Skin); Enhanced Move 1 (Ground Speed 10); Night Vision 1; Quadruped; Wild Animal.
Skills: Stealth-11; Survival (Woodlands)-12.

Use the same profile for Victorlemoinea.

Notiolofos arquinotiensis adds Temperature Tolerance 3 (Cold). N. regueroi (90 lbs.) reduces ST and HP to 9, SM to 0, kick damage to 1d−1, kick reach to C, 1, and adds Temperature Tolerance 2 (Cold).

Macraucheniinae

Macrauchenia by Robert Bruce Horsfall (1913)

The largest litopterns all belonged to this family. Their diet seems to have been a mixture of grazing grasses and browsing from trees and shrubs. They are notable for having nasal openings at the top of their skulls, surrounded by attachment points for some soft tissue structure. This has sometimes been reconstructed as a short trunk, but more recent attempts favour a large nose (such as that of a saiga antelope) and maybe highly mobile lips (like a moose). Otherwise, they seem to have resembled large, heavily-built, hump-less camels with three-toed feet. Despite their size, their simple but strong ankle bones suggest considerable agility.

Macrauchenia inhabited the arid scrublands of Patagonia throughout the Pleistocene, while Windhauseria occupied even drier regions of Argentina. Their earlier and smaller relative Huayqueriana lived in the mountains of Western Argentina during the late Miocene. Xenorhinotherium lived later and further north, surviving in the temperate forests of Brazil until the early Holocene.

Macrauchenia

ST 26; DX 12; IQ 3; HT 11.
HP 26; Will 10; Per 12; FP 11; Speed 5.75; Dodge 8; Move 5.
SM +2 (3 hexes), 2,200 lbs.

Kick (9): 2d+4 crushing. Reach C-2.

Traits: Acute Taste and Smell 2; Bad Sight (Low Resolution); Discriminatory Smell; DR 2 (Tough Skin); Enhanced Move 1 (Ground Speed 10; Costs Fatigue, 1FP/Second); Night Vision 1; Reduced Consumption 1 (Water Only); Penetrating Voice; Temperature Tolerance 1 (Cold); Quadruped; Wild Animal.
Skills: Survival (Plains)-12.

This profile assumes a relatively small and immobile snout. To represent a trunk, remove Acute Taste and Smell, Penetrating Voice, and Quadruped, then add Extra Legs (Four Legs), One Arm, and Ham-Fisted 2.

For Windhausenia (2,000 lbs.) reduce ST and HP to 25, increase Reduced Consumption to 2, and change Survival speciality to (Desert).

For Xenorhinotherium (2,000 lbs.) reduce ST and HP to 25, remove Reduced Consumption, and change Survival speciality to (Woodlands).

For Huayqueriana (550 lbs.) reduce ST and HP to 16, SM to +1 (2 hexes), DR to 1, kick damage to 1d+2, kick reach to C, 1, and change Survival speciality to (Mountain).

Proterotheriidae

This family was characterised by bearing their weight on a single hoof on each foot, like horses. Unlike horses, they used a rotary gait to run, in the manner of dogs and pronghorns. Most seem to have been herbivores, but had tusk-like teeth which could deliver a nasty bite.

The sheep-sized Diadiaphorus lived in the mountains of Argentina and Bolivia during the Miocene, while the smaller Tetramerorhinus was found further north and west in Argentina and Peru. The tiny early Miocene Thoatherium also lived in the mountains of Argentina and had only a single toe, lacking even vestigial traces of others. From the late Miocene to the early Pliocene the large Displasiotherium lived near Buenos Aires. Megadolodus, from Miocene Columbia, was more pig-like in its habits and possibly an omnivore. Neolicaphrium, the last survivor of the family, lived in northern Argentina and Uruguay from the late Pliocene to the late Pleistocene. It seems to have adapted from living in grasslands to retreating into forested habitats.

Diadiaphorus by Charles R. Knight (1913)

Diadiaphorus

ST 11; DX 12; IQ 4; HT 12.
HP 11; Will 10; Per 12; FP 12; Speed 6.00; Dodge 9; Move 6.
SM 0, 150 lbs.

Bite (9): 1d−2 cutting. Reach C.

Traits: Bad Sight (Low Resolution); Discriminatory Smell; DR 1 (Tough Skin); Enhanced Move 1 (Ground Speed 12); Night Vision 1; Quadruped; Wild Animal.
Skills: Survival (Mountain)-12.

For Tetramerorhinus (90 lbs.) reduce ST and HP to 9, and bite damage to 1d−3.

For Thoatherium (30 lbs.) reduce ST and HP to 6, SM to −1, bite damage to 1d−4, and remove DR.

Thoatherium minusculum by Charles R. Knight (1913)

For Displasiotherium (900 lbs.) increase ST and HP to 19, SM to +1 (2 yards), bite damage to 2d−1, bite reach to C, 1, and DR to 2. Change Survival speciality to (Plains).

For Megadolodus (160 lbs.) change Survival speciality to (Jungle).

For Neolicaphrium (60 lbs.) reduce ST and HP to 8, bite damage to 1d−3, and remove DR. Change Survival speciality to (Plains) or (Woodlands).

Eudromaeosaurs in GURPS

A group of bipedal carnivores, famed for the scythe-like talons on the second toe of each foot. Their short S-shaped necks were flexible to allow precision bites, while their long, stiff tails provided balance. Evidence suggests that they were fully feathered, including long feathers on the arms. While not capable of true flight, they may have used their wing-like arms for stabilisation while subduing prey or to control jumps. Although they had hands, their fingers were not well suited to manipulating objects.

Dromaeosaurinae

This group had broad, powerful jaws and reached the largest body sizes among the family. There is some evidence that they hunted in packs.

Deinonychus and Utahraptor lived in Laramidia, now western North America, during the early Cretaceous. Dakotaraptor and Dromaeosaurus occupied the same landmass in the late Cretaceous, while Achillobator was found in East Asia.

Deinonychus

ST 11; DX 13; IQ 4; HT 11.
HP 11; Will 11; Per 12; FP 11; Speed 6.00; Dodge 10; Move 6.
SM +2 (3 hexes), 150 lbs.

Bite (15): 1d cutting. Reach C.
Kick (15): 1d impaling. Reach C, 1.

Traits: Born Biter 1; Discriminatory Smell; DR 1 (Flexible); Catfall; Combat Reflexes; Enhanced Move 1 (Ground Speed 12; Costs Fatigue, 1 FP/Second); Ham-Fisted 2; Striking ST 2 (Bite Only); Night Vision 1; Wild Animal.
Skills: Brawling-15; Stealth-13; Survival (Woodlands)-12; Wrestling-14.
Techniques: Kicking-15.

Utahraptor (900 lbs.) increases ST and HP to 19 (damage 2d+1 with bite or kick), Move to 5 (Ground Speed 10 with Enhanced Move), and SM to +3 (5 hexes). Kick reach becomes C-2.

Dakotaraptor (700 lbs.) increases ST and HP to 18 (damage 2d with bite, 1d+3 with kick) and SM to +3 (5 hexes). Kick reach becomes C-2.

Dromaeosaurus (30 lbs.) reduces ST and HP to 6, SM to 0 (2 hexes), and Striking ST to 1 (damage 1d−3 with bite or kick).

Achillobator (550 lbs.) increases ST and HP to 16 (damage 1d+2 with bite or kick) and SM to +3 (4 hexes). Kick reach becomes C-2.

Saurornitholestinae

A group of small dinosaurs with relatively deep, short snouts and long arms. They lived in Laramidia during the late Cretaceous. Their limbs seem well suited to climbing and they may have had some ability to glide short distances.

Saurornitholestes

ST 6; DX 14; IQ 4; HT 10.
HP 6; Will 11; Per 12; FP 10; Speed 6.00; Dodge 10; Move 6.
SM −1, 30 lbs.

Bite (16): 1d−4 cutting. Reach C.
Kick (16): 1d−3 impaling. Reach C.

Traits: Born Biter 1; Discriminatory Smell; Combat Reflexes; Enhanced Move 1 (Ground Speed 12; Costs Fatigue, 1 FP/Second); Flight (Gliding; Winged); Ham-Fisted 2; Night Vision 1; Wild Animal.
Skills: Brawling-16; Climbing-16; Survival (Woodlands)-12.
Techniques: Kicking-16.

This profile is also suitable for Atrociraptor.

Bambiraptor (15 lbs.) reduces ST and HP to 5.

Velociraptorinae

Fast, dog-sized predators from East and Central Asia during the late Cretaceous. They had narrow snouts and long legs. There is no evidence of them pack hunting, and they seem to have specialised in smaller prey.

Velociraptor

ST 8; DX 13; IQ 4; HT 11.
HP 8; Will 11; Per 12; FP 11; Speed 6.00; Dodge 10; Move 7.
SM 0 (2 hexes), 60 lbs.

Bite (15): 1d−3 cutting. Reach C.
Kick (15): 1d−2 impaling. Reach C.

Traits: Born Biter 1; Discriminatory Smell; Combat Reflexes; Enhanced Move 1 (Ground Speed 14; Costs Fatigue, 1 FP/Second); Ham-Fisted 2; Night Vision 2; Super Jump 1; Wild Animal.
Skills: Brawling-15; Jumping-15; Survival (Desert)-13.
Techniques: Kicking-15.

This profile is also suitable for related genera like Kansaignathus and Linheraptor.