In Depth First discovered in 1973, Arkansaurus was due to be formally named in 1977, tragically however the papers author Dr. James H. Quinn was killed in a fall while searching for fossils. Because the paper was not formally published, the name Arkansaurus was technically not valid. The name Arkansaurus however was not unknown and … Read more
In Depth Named after a village near the location of the fossil site, Rahiolisaurus is still a surprisingly little known abelisaurid at the time of writing, despite it being around eight meters long. The fossils of this abelisaurid were originally considered to be remains of another abelisaurid named Indosuchus. As a large abelisaurid, Rahiolisaurus would … Read more
In Depth First described as a species of Saurolophus in 2013, the species was re-described as a distinct genus, Augustynolophus only a year later. Not much can be said about Augustynolophus, though we do know that it was among the last hadrosaurid genera to live, and may have been around to see the asteroid strike … Read more
In Depth Initially thought to represent a new specimen of Zephyrosaurus, the small partial skull of the holotype was soon realised to be a whole new genus of small ceratopsian dinosaur. Like most primitive ceratopsian dinosaurs, Aquilops was a fairly small dinosaur measuring just over half a meter in length. The name Aquilops means ‘eagle … Read more
In Depth For one hundred and forty years Amphicoelias was regarded by some to have been one of the largest dinosaurs to ever walk the earth. First named in 1878 by Edward Drinker Cope, and based upon some truly large fossils of vertebrae and partial limbs and pubis bones. Three species were named, A. altus, … Read more
In Depth Named after the Atacama Desert, Atacamatitan was a genus of titanosaur sauropod that lived in what is now Chile during the late Cretaceous. More precise details about the genus however remain hard to establish, due to the fact that the remains of Atacamatitan are very incomplete. Further Reading - A new titanosaur sauropod … Read more
In Depth The holotype remains of Asylosaurus were originally attributed to the genus Thecodontosaurus, but a review by Peter Galton saw these remains established as a new genus. The genus names means ‘unharmed/sanctuary lizard’ and this is a reference as to how this set of remains were shipped from England to the United States by … Read more
In Depth Atlasaurus was named after the Atlas Mountains of Morocco. These in turn were named after the Titan Atlas who in Greek Mythology was said to hold up the sky. The species name A. imelakei comes from the Arabic Imelake, the name of a giant. Atlasaurus was once treated as a fairly primitive sauropod … Read more
In Depth Aniksosaurus was a small coelurosaur from South America, and one that may have lived in small groups. Evidence for this comes from a bone bed of fossils that so far only contain Aniksosaurus. These however may be sub adults, which could also be interpreted as a group of young Aniksosaurus sticking together for … Read more
In Depth At the time of its description, Australotitan is thought to possibly represent the largest dinosaur known from the Australian continent. However, Australotitan has only been described from partial limb and hip bones, and while the femur of Australotitan suggests that this dinosaur was comparable to other titanosaurian dinosaurs such a Dreadnoughtus and Futalognkosaurus … Read more