N Gargantuan animal
Init +4; Senses low-light vision; Perception +32
AC 18; touch 6, flat-footed 18 (+12 natural, -4 size)
hp 481 (26d8+260)
Fort +24, Ref +15, Will +8
Speed 20 ft.
Melee stomp +23 (2d6+7), tail +18 (2d8+3)
Special Attacks capsize, trample (2d6+10, DC 30)
Space 20 ft.; Reach 10 ft. (30 ft. with tail)
Str 35, Dex 11, Con 25, Int 1, Wis 10, Cha 9
Base Atk +19; CMB +30; CMD 40 (44 vs. trip)
Feats Great Fortitude, Improved Initiative, Improved Natural Armor (x5), Skill Focus (Perception), Toughness (x3), Weapon Focus (stomp), Weapon Focus (tail)
Skills Perception +32
A brontosaurus can attempt to capsize a boat or ship by ramming it as a charge attack and making a CMB check. The DC of this check is 25, or the result of the boat captain's Profession (sailor) check, whichever is higher. For each size category larger than the brontosaurus's size, it takes a cumulative –10 penalty on this CMB check.