Bestiary >(Bestiary) By Type >Animals >Dinosaur >

Dinosaur, Elasmosaurus

Long-necked and long-tailed, this large, predatory reptile glides through the water on four powerful flippers.
Elasmosarus CR 7

XP 3,200
N Huge
+2; Senses low-light vision, scentPerception +14


AC 20, touch 11, flat-footed 17 (+2 Dex, +1 dodge, +9 natural, –2 size)
105 (10d8+60)
+14, Ref +9, Will +6


Speed 20 ft., swim 50 ft.
bite +13 (2d8+12)
15 ft.; Reach 20 ft.


Str 26, Dex 15, Con 20, Int 2, Wis 13, Cha 9
Base Atk
+7; CMB +17; CMD 30 (34 vs. trip)
Dodge, Great Fortitude, Iron Will, Mobility, Toughness
Perception +14, Swim +16

Elasmosaurus Companions

Starting StatisticsSize Medium; Speed 20 ft., swim 50 ft.; AC +2 natural armor; Attack bite (1d8); Ability Scores Str 10, Dex 18, Con 12, Int 2, Wis 13, Cha 9; Special Qualities low-light vision, scent.

4th-Level AdvancementSize Large; AC +3 natural armor; Attack bite (2d6); Ability Scores Str +8, Dex –2, Con +4.


Environment warm aquatic
solitary, pair, or school (3–6)

The sleek elasmosaurus is a long-necked, aquatic reptile. Although not technically a dinosaur, they and their kind are often found hunting in oceans and lakes in areas where dinosaurs are more common. You can create statistics for smaller, similar aquatic reptiles (such as the pleisosaurus) by applying the young simple template to the statistics presented above. An elasmosaurus is 45 feet long and weighs 4,000 pounds.

Section 15: Copyright Notice

Pathfinder RPG Bestiary, © 2009, Paizo Publishing, LLC; Author: Jason Bulmahn, based on material by Jonathan Tweet, Monte Cook, and Skip Williams.