In Depth It is quite surprising when you think about how Aublysodon is represented in so many dinosaur books and internet sources even though back when it was described in 1868 it was only from teeth. Still this was a sign of the times back then with other discoveries such as Troodon, which was also … Read more
In Depth Because of the scant material available, Alectrosaurus is not very well known. The only thing that can be said about it with any confidence is that it was a tyrannosauroid, the superfamily that includes the famous Tyrannosaurus rex. Further elaboration on this is not currently possible and the exact position of Alectrosaurus within … Read more
In Depth Alioramus has stirred a lot of interest and controversy since its discovery, and even though Alioramus has earned worldwide popularity it was for a long time only known from a partial skull and three metatarsals (foot bones). Another problem was the fact that when reconstructed, the skull was narrow and low like in … Read more
In Depth When Appalachiosaurus was first discovered it raised more than a few eyebrows because it was discovered in the Eastern United States. Up until that point only one other genus of tyrannosaur named Dryptosaurus had been found in the eastern half of the USA. The one specimen of Appalachiosaurus appears to have been a … Read more
In Depth Moros is a genus of primitive tyrannosauroid that lived in North America during the earlier stages of the Late cretaceous. The holotype fossils of Moros date from the Cenomanian of the Cretaceous, meaning that the discovery of these has turned back the clock on the first known appearance of a definitive tyrannosaur in … Read more
In Depth Aviatyrannis was for lack of a better word tiny, although this small size is actually a hallmark of tyrannosaur ancestry. Although incomplete, the fossil remains of Aviatyrannis are very similar to another ancient tyrannosaur, Stokesosaurus, from North America. This has resulted in speculation that Aviatyrannis is actually a junior synonym of Stokesosaurus, and … Read more