In Depth Foraminacephale is a genus of small pachycephalosaurid dinosaur that lived in North America during the late Cretaceous. Fossil material of Foraminacephale was originally assigned to the Stegoceras genus as the species S. brevis, but became the basis of a new genus in 2016 (Schott & Evans). Several partial skulls of Foraminacephale are are … Read more
In Depth The taxonomic history of Erectopus is a little muddled, but to begin with Erectopus was named as a species of Megalosaurus, M. superbus. This was in 1882 when Henri-�mile Sauvage added fossil remains to a private collection owned by Louis Pierson that had first been described in 1875 by Charles Barrois. Then when … Read more
In Depth Like with Rapator and Ozraptor, Kakuru has been named from a single bone. Also like with Raptor, the type specimen of Kakuru has been turned to opal. The exact classification of Kakuru has been hard to establish because of the lack of identifiable remains. What can be said is that Kakuru was likely … Read more
In Depth Pisanosaurus is easily one of the oldest ornithischian dinosaurs that are currently known to science. Unfortunately the holotype specimen is very fragmentary, and details such as the orientation of the pubic bone are still unknown. Despite this the basic orithopod body form can still be clearly seen, Pisanosaurus is a good indicator for … Read more
In Depth In terms of size Marshosaurus was a middle of the range theropod but one that seems built for strength. Aside from the fairly robust skull, the short but thick humerus of the arms indicates that Marshosaurus was adapted for holding onto and physically subduing its prey. A right ilium (hip bone) of Marshosaurus … Read more
In Depth Xiyunykus is a genus of alvarezsaurid dinosaur that lived in China during the early Cretaceous. In terms of alvarezsaur evolution, Xiyunykus shows an intermediate development between primitive ancestors and more developed descendents. Care should be taken not to confuse the Xiyunykus with the similarly named alvarezsaur Xixianykus. Further Reading - Two early Cretaceous … Read more
In Depth A relative of the famous Tyrannosaurus, Dynamoterror lived further south in what is now the New Mexico area of the USA. Described after a pain staking process of re-combined the partial remains of the holotype, Dynamoterror was revealed to have been a medium/large nine meter long predatory dinosaur. This is smaller than the … Read more
In Depth The Tatankaceratops type specimen was pieced together from partial remains before it was named in 2010, and soon after there were murmurings that it was actually a juvenile Triceratops. This stems down to a 2011 study by Nicholas R. Longrich which noted a mix of juvenile and adult characteristics in the skull. Since … Read more
In Depth Mirischia is a genus of compsognathid dinosaur that lived in what is now Brazil during the early Cretaceous. Mirischia means ‘wonderful ischia’, and this dinosaur acquired this name because the two ischia (bones of the pelvis) show an oval foramen (opening) in the left bone, and a notch in the same position on … Read more
In Depth Kulceratops is a very interesting genus of ceratopsian dinosaur as the holotype has been dated to coming from a fossil deposit Albian of the Early Cretaceous in age. This makes Kulceratops a candidate for being one of the first ceratopsian dinosaurs to appear. Unfortunately Kulceratops is only known from a partial maxilla (upper … Read more