In Depth The rauisuchians were the top land predators of the Triassic, and remained so until the appearance of the large theropod dinosaurs. These rauisuchians are usually portrayed as long quadrupedal predators, and for the most part this is true. However there is a surprisingly little known group of bipedal rauisuchians called the poposaurids, of … Read more
In Depth Bromsgroveia is a genus of poposaurid rauisuchian that lived in England during the early Triassic. Bromsgroveia was named after the Bromsgrove Sandstone Formation where the holotype fossils were discovered. Further Reading - The poposaurid thecodontian Teratosaurus suevicus v. Meyer, plus referred specimens mostly based on prosauropod dinosaurs, from the Middle Stubensandstein (Upper Triassic) … Read more
In Depth The first poposaurid rauiscuhian to be discovered outside of North America, Sillosuchus was named after Dr. William Sill in recognition of his support for palaeontology within the Province of San Huan. Sillosuchus is a relative of the genus Shuvosaurus, and both of these are members of the Poposauroidea, a group named after the … Read more
In Depth Arizonasaurus has enjoyed a lot of popularity since the discovery of a far more complete specimen in 2002. Before this Arizonasaurus was only known from very partial remains that were only diagnostic enough to classify it as a rauisuchian, reptiles that were the dominant predators of the Triassic while the early dinosaurs were … Read more