Metoposaurus

Metoposaurus meaning "front lizard" is an extinct genus of Stereospondyli temnospondyl amphibian, known from the Late Triassic of Germany, Italy, Poland, and Portugal.[1] [2]  This mostly aquatic animal [3]  possessed small, weak limbs, sharp teeth, and a large, flat head.[4]  This highly flattened creature mainly fed on fish, which it captured with its wide jaws lined with needle-like teeth. Metoposaurus was up to 3 m (10 feet) long and weighed 454 kg (1,000 pounds),.[4]  Many Metoposaurus mass graves have been found, probably from creatures that grouped together in drying pools during drought.