In Depth Alocodon is considered to be highly dubious genus of dinosaur since its description is based upon only teeth. In the past the teeth of Alocodon have been interpreted as being both a hypsilophodontid and a thyreophoran, two very different kinds of ornithischian dinosaurs. This is why the genus is considered a nomen dubium, … Read more
In Depth Mistralazhdarcho is a genus of azdarchid pterosaur that lived in Western Europe during the late Cretaceous. Because the remains of the holotype individual are both incomplete and of an immature individual, the full size of Mistralazhdarcho is unknown at the time of writing. Comparison to the remains of other azdarchid pterosaur genera however … Read more
In Depth Lambeosaurus the dinosaur Lambeosaurus is one of the hadrosaurs that is frequently depicted in dinosaur books and toys, and study of this genus is required learning for anyone who wishes to know more about the hadrosaurs in general. Lambeosaurus is best known from Canada and upper Montana USA, although other attributed fossils in … Read more
In Depth Ogresuchus is a genus of sebecosuchian crocodile and a very important one; Ogresuchus is the first known of its kind discovered in a Mesozoic aged deposit, in this instance the very latest stage of the Cretaceous. This clearly indicates that the Sebecosuchians clearly had their origins in the Mesozoic, though not coming to … Read more
In Depth Although two species have been named for this genus of sauropod dinosaur, they have both been established upon the description of teeth. For this reason Asiatosaurus is usually treated as a highly dubious genus of sauropod. Further Reading - Sauropoda and Theropoda from the Lower Cretaceous of Mongolia. American Museum Novitates 128:1-7. - … Read more
In Depth First and most famous member of the plesiosaur group, Plesiosaurus caused a stir upon its discovery as nothing like it was previously known. Unfortunately Plesiosaurus suffered from the wastebasket taxon effect as any set of remains remotely similar to it ended up being assigned to the genus without much further thought (a method … Read more
In Depth Erpetosuchus is a genus of small pseudosuchian that lived during the Triassic and is known to have had a distribution reaching across from what is now Scotland to the Eastern United States of America. Further Reading - Reptiles from the Elgin Sandstone. Description of two new genera. - Philosophical Transactions of the Royal … Read more
In Depth Acantholipan is a genus of nodosaurid dinosaur that lived in North America during the late Cretaceous. Acantholipan is the first dinosaur of its kind discovered in Mexico. Further Reading - Paleodiversity of Late Cretaceous Ankylosauria from Mexico and their phylogenetic significance. - Swiss Journal of Palaeontology. 137 (1): 83–93. - H�ctor Eduardo Rivera-Sylva, … Read more
In Depth Pedopenna is a genus of small maniraptoran dinosaur that lived in China during the end of the Mid Jurassic. Pedopenna is classed as a member of the Deinonychosauria, the group that incorporates later dromaeosaurs and troodonts, as well as the ancestors of birds. Pedopenna already displays some features that would be common in … Read more
In Depth Described from a partial skeleton, Seitaad is one of the few North American sauropodomorphs currently known. It is widely believed that the individual that is now the Seitaad holotype was buried in a landslide from a collapsing sand dune, and hence this is the inspiration for the genus name. Further Reading -A New … Read more