Shantungosurus (5e Creature)
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Gargantuan beast (hadrosaur), unaligned
Stomp. Melee Weapon Attack: +5 to hit, reach 5 ft., one prone creature. Hit: 21 (3d10 + 5) bludgeoning damage.
Tail. Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 24 (3d12 + 5) bludgeoning damage. If the target is a Medium or smaller creature, it must succeed on a DC 13 Strength saving throw or be knocked prone.
Shantungosaurus is much like Edmontosaurus, except the Shant is more well known for its aggression. The Shant fears nothing and prefers to fight its predators as opposed to fleeing, which is very different from its Hadrosaur brethren. An angry bull Shant is one of the most dangerous things an explorer could come across, Shantungosaurus is very thorough with its attacks, never relenting until whatever it sees as a threat stops looking like a threat. Which often results in the deaths of almost any explorer that gets close enough to them.