In Depth Superficially Sanjuansaurus was probably similar to Herrerasaurus in general appearance, but some skeletal features seem to have been slightly more primitive. Sanjuansaurus lived in the same time and location as its more famous relative Herrerasaurus which would suggest that this form held an important place in their ecosystem. Neither Sanjuansaurus nor Herrerasaurus would … Read more
In Depth Pakasuchus is a genus of small notosuchian crocodylomorph that lived in Africa during the early Cretaceous. What are most notable about Pakasuchus are the teeth which are multicusped and very mammal-like, so much so that they look more like those of a mammal than a crocodile. Pakasuchus seems to have lacked large osteoderms … Read more
In Depth Little is known about Wannanosaurus, but the skull specimen found appears to have been from a fully grown adult as the bones that make up the skull show signs of being fused together. Wannanosaurus is considered a primitive member of the pachycephalosaurs because it has a flat skull roof and enlarged openings when … Read more
In Depth The holotype fossils of Sellacoxa were originally found in 1873 by John Hopkinson not far from Hastings. They were re-named as a distinct genus of iguanodont dinosaur in 2010 by Kenneth Carpenter and Yusuke Ishida at the same time that they named another genus called Torilion. However, earlier in 2010 another paper written … Read more
In Depth Yunnanosaurus is one of the best represented sauropodomorph (previously known as prosauropods) dinosaurs not only in China, but the entire world, with the fossils remains of over twenty individual Yunnanosaurus so far known. This has allowed palaeontologists to become familiar with most aspects of this genus including the realisation that Yunnanosaurus would have … Read more
In Depth Parvinatator is a little known Triassic age ichthyosaur from British Columbia. The primitive form of Parvinatator reveals that it was similar to other primitive forms such as Utatsusaurus. Further Reading Further reading- A new ichthyosaur from the Triassic Sulphur Mountain formation of British Columbia. by E. Nicholls & D. Brinkman. – In, Vertebrate … Read more
In Depth Despite its appearance in dinosaur documentaries like Dinosaur Planet, not much is known about Tarascosaurus. The type material is very incomplete but has still seen this dinosaur tentatively placed within the Abelisauridae. Aside from Betasuchus, Tarascosaurus is the only representative of this group of theropod dinosaurs which were previously considered to be present … Read more
In Depth Eoneustes is a primitive genus of thalattosuchian marine crocodile that lived in European sea waters during the mid Jurassic. The Eoneustes genus was established from two former species of Teleidosaurus, T. bathonicus and T. gaudryi. Eoneustes along with Teleidosaurus were once thought to represent the oldest marine crocodiles until the 2015 naming of … Read more
In Depth The holotype specimen of Scipionyx was first discovered in 1981, though it did not garner wider attention until 1993 when its existence was announced to the wider public. It would not be until 1998 however that the genus and species name Scipionyx samniticus would be created. The holotype was discovered by amateur palaeontologist … Read more
In Depth Shuangbaisaurus is a genus of predatory dinosaur that lived in China during the start of the Jurassic period. Known from a partial skull, there is speculation that Shuangbaisaurus might be synonymous with Sinosaurus. Further Reading - A new crested theropod dinosaur from the Early Jurassic of Yunnan Province, China. - Vertebrata PalAsiatica 55(2):177-186. … Read more