In Depth Another European ornithopod that was once described as a species of Camptosaurus, Cumnoria was established as a distinct genus in 1888. At three and a half meters long for the first (and at the time of writing only) individual found, it may be that Cumnoria was a fairly small ornithopod. However, studies of … Read more
In Depth Initially thought to be one of the most primitive birds in the fossil record, later studies have depicted Jinfengopteryx as a small troodontid theropod dinosaur. This new interpretation has been derived from observation of the form of the skull and the presence of an enlarged sickle claw on the second toe of each … Read more
In Depth Struthiosaurus seems to have been fairly common across Europe during the Late Cretaceous, a time when much of continental Europe was more like an island chain. Originally based upon fragmentary Austrian material, many genera named by Harry Govier Seeley late in the nineteenth century have now been synonymised with Struthiosaurus. This combined with … Read more
In Depth Named in 2016 from a single specimen, Viavenator is another of the growing number of South American abelisaurid dinosaurs that are known to us. At a glance Viavenator does not seem to be anything special apart from being another abelisaur, however the authors of the paper describing this dinosaur have identified a combination … Read more
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 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 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 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