Postosuchus, a merciless ambush predator. The largest carnivore on Earth.
— Allen, describing Psotosuchus

Postosuchus ("Crocodile from Post") is a genus of rasuschian reptile that lived during the Late Triassic period throughout what is now North America. It was the apex and largest predator of its day,



Postosuchus lived during the Late Triassic Period 225-208 million years ago. It was the top predator of its time.



Full Grown Postosuchus

A ruthless ambush predatory reptile, Postosuchus was the largest carnivore of its time. Measuring up to 6 meters in length, standing two meters high, and heavily built with an armored back, they needed a large amount of food and therefore they had to defend an enormous territory.

Postosuchus was a distant relative of the dinosaurs, having evolved from the same reptilian ancestors. However, unlike the dinosaurs, Postosuchus was too front heavy to run on two legs, yet they were easily fast enough to keep pace with a herd of Placerias.


Postosuchus was a solitary hunter and creature, only getting together dring mating seasons. Additionally, both males and females were very territorial of each other. Much like Tyrannosaurus Rex, the only creatures on the planet Postosuchus feared was their own kind. Additionally, similar to modern bears, Postosuchus reared back on their legs, or at the very least for a few seconds, stood on their back legs to scare off other creatures, even their own kind.