Larger even than the tyrannosaurus, the spinosaurus is 60 feet long and weighs 25,000 pounds or more. It hunts primarily along coastal and river shorelines. Spinosaurus Companions Starting Statistics: Size Medium; Speed 30 ft., swim 20 ft.; AC +3 natural armor; Attack bite (1d6), 2 claws (1d4); Ability Scores Str 18, Dex 15, Con 15, Int 2, Wis 13, Cha 3. 7th-Level Advancement: Size Large; AC +2 natural armor; Attack bite (1d8), 2 claws (1d6); Ability Scores Str +8, Dex -2, Con +4.