In Depth Dapingfangornis is a genus of enantiornithe bird that lived in China during the Cretaceous. Further Reading - New Eoenantiornithid Bird from the Early Cretaceous Jiufotang Formation of Western Liaoning, China. - Acta Geologica Sinica (English Edition) 80(1):38-41. - L. Li, Y. Duan, D. Hu, L. Wang, S. Cheng and L. Hou - 2006.
In Depth Gorgosaurus had the same basic body plan of all tyrannosaurids with a large head on an s-shaped neck, small arms and bipedal stance. With around sixty teeth in its mouth (there is some variance between specimens) Gorgosaurus shared a common trait with other tyrannosaurids of its size, as the larger the tyrannosaurids go … Read more
In Depth Alvarezsaurus was the first of a group of dinosaurs that were first discovered late into the twentieth century. Since it was the first, Alvarezsaurus was used to name this new group which became known as the alvarezsaurs. At the time of writing there are now several genera of alvarezsaurs known to us, but … Read more
In Depth Acrocanthosaurus immediately sticks out from other large theropods with its high dorsal spines than run from the neck to the tip of the tail. There have been many artistic representations for this structure from the spines standing proud from the body, to supporting a flap of skin. Modern thinking however comes from the … Read more
In Depth Atrociraptor has been described from very incomplete remains, but two clear observations can be made about this dinosaur. One is that the snout appears to be both deeper and shorter than most other dromaeosaurs, something that could indicate a strong bite due to larger muscles and the outer teeth being placed closer to … Read more
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