Phytosaurs in GURPS

Although only distantly related to crocodilians, phytosaurs looked almost exactly like them. The most noticeable differences were that the ends of their snouts curved down and their nostrils were positioned near their eyes. All known genera are from the late Triassic, although they are believed to have evolved near the beginning of the period. They lived in the tropical regions of Pangaea.

Angistorhinus

A large phytosaur with narrow jaws and slender teeth, ideal for catching fish. Rutiodon was similar in both size and diet, while Machaeroprosopus was a smaller fish-eater.

Angistorhinus

ST 26; DX 10; IQ 2; HT 12.
HP 26; Will 11; Per 11; FP 12; Speed 5.00; Dodge 8; Move 4.
SM +4 (8 hexes), 2,200 lbs.

Bite (12): 1d cutting. Reach C.
Tail Lash (12): 2d+6 crushing. Reach 1-4, Rear Only.

Traits: Amphibious; Bad Sight (Low Resolution); Born Biter 3; Breath-Holding 4; Cold Blooded (65°); Discriminatory Smell; DR 7 (Tough Skin); Limited Camouflage; Night Vision 2; Peripheral Vision; Quadruped; Weak Bite; Wild Animal.
Skills: Brawling-12; Survival (River/Stream)-12; Swimming-14.

Use the same profile for Rutiodon. For Machaeroprosopus (600 lbs.) reduce ST and HP to 17, SM to +3 (6 hexes), and DR to 4. This changes bite damage to 1d−2, tail damage to 1d+4, and tail reach to 1-3.

Mystriosuchus

A sea-dwelling animal, Mystriosuchus had limbs which were more flippers than legs. It mostly ate soft-bodied invertebrates.

Mystriosuchus

ST 13; DX 11; IQ 2; HT 12.
HP 13; Will 11; Per 11; FP 12; Speed 5.00; Dodge 8; Move 2.
SM +2 (4 hexes), 280 lbs.

Bite (12): 1d−3 cutting. Reach C.
Tail Lash (12): 1d+2 crushing. Reach 1-2, Rear Only.

Traits: Bad Sight (Low Resolution); Born Biter 3; Breath-Holding 5; Cold Blooded (65°); Discriminatory Smell; DR 3 (Tough Skin); Limited Camouflage; Night Vision 2; No Legs (Semi-Aquatic; Water Move 8); No Fine Manipulators; Peripheral Vision; Weak Bite; Wild Animal.
Skills: Brawling-12; Survival (Salt-Water Sea)-12; Swimming-15.

Nicrosaurus

Nicrosaurus took the opposite evolutionary path to Mystriosuchus, adapting to the land. Although not especially large by phytosaur standards, its teeth were well suited to big game.

Nicrosaurus

ST 13; DX 10; IQ 2; HT 12.
HP 13; Will 11; Per 11; FP 12; Speed 5.00; Dodge 8; Move 5.
SM +2 (4 hexes), 250 lbs.

Bite (12): 1d+1 cutting. Reach C.
Tail Lash (12): 1d+2 crushing. Reach 1-2, Rear Only.

Traits: Bad Sight (Low Resolution); Born Biter 3; Breath-Holding 2; Discriminatory Smell; DR 3 (Tough Skin); Limited Camouflage; Night Vision 2; Peripheral Vision; Striking ST 2 (Bite Only); Quadruped; Wild Animal.
Skills: Brawling-12; Stealth-10; Survival (Plains)-12; Swimming-12; Tracking-15.

Paleorhynus

A small generalist, which would eat fish, carrion, or smaller land animals as the opportunity arose.

Paleorhynus

ST 9; DX 12; IQ 2; HT 12.
HP 9; Will 11; Per 11; FP 12; Speed 6.00; Dodge 9; Move 4.
SM +1 (3 hexes), 100 lbs.

Bite (14): 1d−2 cutting. Reach C.
Tail Lash (14): 1d crushing. Reach 1, Rear Only.

Traits: Amphibious; Bad Sight (Low Resolution); Born Biter 3; Breath-Holding 4; Cold Blooded (65°); Discriminatory Smell; DR 2 (Tough Skin); Limited Camouflage; Night Vision 2; Peripheral Vision; Quadruped; Reduced Consumption 2 (Cast-Iron Stomach); Wild Animal.
Skills: Brawling-14; Stealth-14; Survival (River/Stream)-12; Swimming-13; Tracking-15.

Smilosuchus

The largest known phytosaur had long fangs at the tip of its jaw for grabbing large animals. It was likely an ambush predator, like modern crocodiles. Brachisuchus was another big ambush predator.

Smilosuchus

ST 33; DX 9; IQ 2; HT 12.
HP 33; Will 11; Per 11; FP 12; Speed 5.00; Dodge 8; Move 4.
SM +5 (17 hexes), 4,500 lbs.

Bite (11): 4d+3 impaling. Reach C.
Tail Lash (11): 3d+8 crushing. Reach 1-5, Rear Only.

Traits: Amphibious; Bad Sight (Low Resolution); Born Biter 3; Breath-Holding 4; Cold Blooded (65°); Discriminatory Smell; DR 8 (Tough Skin); Limited Camouflage; Night Vision 2; Peripheral Vision; Quadruped; Reduced Consumption 1 (Cast-Iron Stomach); Striking ST 4 (Bite Only); Wild Animal.
Skills: Brawling-11; Stealth-13; Survival (River/Stream)-12; Swimming-13.

For Brachisuchus (2,500 lbs.) reduce ST and HP to 27, SM to +4 (12 hexes), and DR to 7. Bite damage changes to 3d+3 cutting, tail damage to 3d+5, and tail reach to 1-4.