Postosuchus
Postosuchus is the oldest reptile inhabiting Texas, Arizona and the New Mexico territory about 227 million years ago. Its name means “Crocodile from Post city”. With 4-5 metres body length, 2 metres height and 300-400 kilograms weight the reptile was one of the largest Triassic period carnivorous dinosaurs that terrified all surrounding habitat creatures. The appearance was similar to a stretched lizard moving on powerful hind limbs and had an almost 2-metre long tail. The forelimbs were two times shorter than hind limbs, however, were unusually long for that period, and ended up in claws.