Name Rutiodon
Order Phytosauria
Suborder Crurotarsi
Class Reptilia
Name Translation Wrinkle-Tooth
Period Late Triassic
Location North America
Diet Meat
Length 6 metres (20 ft) long
Rutiodon Carolinensis was one of the large  crocodilian-like thecodonts from the Late Triassic Period. It was one of the largest and deadliest predators of its time, and was aquatic as well, like modern crocodiles. It disappeared

Rutiodon Skeleton

around 200 million years ago, when the dinosaurs first started to take over. It most likely went extinct from an asteroid that also wiped out the last of the mammal-like reptiles and thecodonts. It was discovered and named by Ebenezer Emmons in 1856.


Rutiodon was a large crocodilian, growing to a maximum of 20 feet (6 meters) long, and was equipped with powerful jaws, designed to kill prey with a single bite. It lived in murky rivers and swamps, and was most likely an ambush predator. It lied in wait until its prey came to take a drink, and would jump out, grab ahold of it, and if the initial bite didn't kill the prey item, Rutiodon would drown its prey until it was dead, then eat it. It had a long tail, designed for swimming, and four short, stocky legs, not much good on land. It may have fed on early dinosaurs like Coelophysis, Plateosaurus and Riojasaurus, and other archosaurs
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When Dinosaurs Roamed America Rutiodon

like the heavily armored aetosaur Desmatosuchus. Unlike modern-day crocs, though, Rutiodon's nostril were far up on its snout, almost up by where its eyes are.

In the Media

  • In the episode The Amazing Three Horn Girl from The Land Before Time (TV Series) Rutiodons were the only belly Draggers from the TV Series.



New phytosaur




Animal Armageddon

When Dinosaurs Roamd America

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