Proterosuchus was an early relative of crocodiles. It lived during the early Triassic period.

Proterosuchus was one of the largest land reptile of Early Triassic, equivalent in size to today's Komodo dragons. It looked somewhat similar to a primitive crocodile, and shared many of their modern features like long jaws, powerful neck muscles, short legs and a lengthy tail, while possessing several features unique to proterosuchids such as its hook-shaped mouth.

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