In Depth So far at the time of writing the only known fossils of Kol are of a complete foot. This foot however is enough to identify Kol as an alvarezsaurid dinosaur, and one that was fairly big. The foot of the Kol holotype specimen is about twice the size of the foot of Shuvuuia, … Read more
In Depth Ganzhousaurus is an oviraptorid dinosaur that displays a mix of primitive and advanced features which suggests that it is transitory in form between primitive oviraptorids that were around earlier in the Cretaceous, and more advanced ones alive later in the Cretaceous. Though since the fossils for Ganzhousaurus are from a Maastrichtian era deposit, … Read more
In Depth The history of Sinosaurus as a dinosaur taxon goes all the way back to 1948 when the genus was first formally described. However this description was based upon very partial remains something that meant the genus fell by the wayside in popularity stakes, with some palaeontologists even treating the Sinosaurus genus as a … Read more
In Depth Although only a little dinosaur, the taxonomic history of Coelurus can be confusing to say the least. The first small theropod dinosaur from the famous Morrison Formation to be named, in the past the genus Coelurus has crossed paths with other small Morrison formation theropods such as Ornitholestes and Tanycolagreus. In addition to … Read more
In Depth Machairasaurus is a genus of oviraptorid dinosaur that lived in China during the late Cretaceous. Machairasaurus was so named from the claws on its fingers which are curved like scimitar swords. It is speculated that these claws may have allowed Machairasaurus to pull and manipulate plant branches or possibly even dig out roots. … Read more
In Depth Europatitan was a very large somphospondylan sauropod dinosaur that lived in Spain during the early Cretaceous. The type species name E. eastwoodi was inspired by the actor Clint Eastwood. Further Reading - Europatitan eastwoodi, a new sauropod from the lower Cretaceous of Iberia in the initial radiation of somphospondylans in Laurasia. - PeerJ … Read more
In Depth Raptorex is a very dubious genus of tyrannosaur that many consider to be a juvenile Tarbosaurus. When Raptorex was first revealed to the world the holotype had already been dug out of the ground and shipped to Japan where it was purchased by an American businessman. Back then the fossil was being identified … Read more
In Depth Eoraptor stands out not only for being one of the first dinosaurs to ever walk the Earth, but because palaeontologists cannot conclusively agree on where to place it in relation to other dinosaurs. Initially Eoraptor was classed as a theropod because of its bipedal stance and narrow build, but the sauropodomorphs (which would … Read more
In Depth Latenivenatrix has a somewhat convoluted history of discovery. The holotype specimen of the genus (CMN 12340) was originally designated as being a Stenonychosaurus by Dale A. Russel in 1969. Then in 1987 it was moved into the Troodon genus, the type genus of the troodontid dinosaurs. It was not until much later in … Read more
In Depth Unfortunately at the time of the genus description the only fossils of Austroposeidon that we have are some vertebrae. However, comparison to other similar dinosaurs has led to realistic size estimates for this dinosaur of about twenty-five metres in length. Although not the biggest dinosaur, this does make Austroposeidon at the time of … Read more