In Depth The first Brachylophosaurus remains were discovered in Alberta in 1936, but were not named until 1953 when Charles Sternberg made the description. A second species of Brachylophosaurus was named as B. goodwini by Jack Horner in 1988; however the wider consensus today is that these individuals are actually further individuals of the genus … Read more
In Depth Koshisaurus is a genus of primitive hadrosauroid dinosaur from the early Cretaceous of Japan. At the time of writing all known remains of Koshisaurus are partial as well as probably representing juvenile or sub adult individuals, both of which are factors that make it difficult to ascertain how big this dinosaur could grow. … Read more
In Depth Wulagasaurus is one of many hadrosaurs that have been found from the Amur River region. Although the genus is represented by a collection of scattered fossils in a bone bed, Wulagasaurus seems to have been a saurolophine hadrosaurid that was possibly related to Maiasaura and Bachylophosaurus. Wulagasaurus was not the only new hadrosaur … Read more
In Depth Another European ornithopod that was once described as a species of Camptosaurus, Cumnoria was established as a distinct genus in 1888. At three and a half meters long for the first (and at the time of writing only) individual found, it may be that Cumnoria was a fairly small ornithopod. However, studies of … Read more
In Depth Lophorhothon was first discovered in the US state of Alabama in the Mooreville Chalk Formation. During the Cretaceous, this area was known as a region of Appalachia (the eastern landmass of North America at the time separated from Laramidia in the West), and what is significant about this is that when Lophorhothon was … Read more
In Depth Charonosaurus is immediately recognisable to its similarity to the better known Parasaurolophus. However Charonosaurus was seems to have been considerably larger than its North American cousin, as well as living later after Parasaurolophus had disappeared in North America. Like with Parasaurolophus, the crest of Charonosaurus is thought to have served both a display … Read more
In Depth Bolong is a genus of hadrosauroid dinosaur that lived in what is now China during the Early Cretaceous. The holotype individual is known from a partial skull and jaws, but a second specimen of a juvenile shows more of the post cranial skeleton. Further Reading – Bolong yixianensis gen. et sp. nov.: A … Read more
In Depth Tanius is one of the many known Asian hadrosauroid dinosaurs, but one that is not very well represented. The initial description was based upon the back of the skull which seems to be that of a flat headed hadrosauroid dinosaur, the kind roughly between the earlier iguanodonts and the more advanced hadrosaurids. However … Read more
In Depth Originally named as a species of Camptosaurus 1909 (Gilmore), and then later Planicoxa in 2008 (Carpenter & Wilson), Osmakasaurus was established as a new genus for partial post cranial remains that establish this genus. The species name ‘depressus’ has been retained to create the type species, which is standard procedure when naming a … Read more
In Depth Leaellynasaura has been named after the daughter of its discoverers (the amicagraphica part recognises the Friends of the Museum of Victoria and the National Geographic Society which supplied funding for the research), and represents a dinosaur that was adapted to life in the Antarctic conditions of the early Cretaceous. Although back then the … Read more