In Depth Oohkotokia was a medium to large ankylosaurid dinosaur that is so far only known from a single individual, though other fossils gathered in the past may actually represent specimens of this genus. Oohkotokia seems to have been similar to Euoplocephalus, though is considered distinct because the skull texture of Oohkotokia is quite smooth … Read more
In Depth Originally thought to be a species of Stegosaurus at the time of the first description in 1901, the partial post cranial remains were soon identified as being a distinct genus and renamed Hoplitosaurus in 1902. The species name which honours the famous American palaeontologist Othniel Charles Marsh, who actually named the genus Stegosaurus, … Read more
In Depth Nanosaurus used to be an uncertain genus of ornithopod dinosaur. In the past three species have been named for Nanosaurus, N. agilis, N. rex and N. Victor. The holotype of N. rex was used to create the genus Othnielia in 1977, while N. victor was later realised to be based upon crocodilian remains. … Read more
In Depth Geranosaurus was an ornithischian dinosaur that lived in South Africa during the early Jurassic. Because Geranosaurus is known from only very fragmentary fossil remains, many consider it a dubious genus as it will likely be very difficult to attribute further remains to the genus given there is so little to compare new discoveries … Read more
In Depth Since the genus was named in 2003, there has been some speculation that Lamaceratops may in fact be based upon fossils referable to Bagaceratops. This is because there is very little difference between known fossils of Bagaceratops and the holotype fossils for Lamaceratops, though Lamaceratops may also represent a species of Bagaceratops not … Read more
In Depth Gobihadros is a genus of hadrosauroid dinosaur known to have lived in central Asia during the earlier stages of the late Cretaceous. Known from numerous fossils from several individuals of varying ages and sizes, and some of these articulated, Gobihadros is one of the best preserved hadrosaurs from Asia. Further Reading - A … Read more
In Depth Officially named and described in 2015 from a single skull, Regaliceratops has already gone down as a particularly interesting ceratopsian dinosaur. The larger ceratopsians of the late cretaceous are usually divided into centrosaurines and chasmosauines, the former having large nasal horns and reduced frills, while the latter usually have reduced nasal horns and … Read more
In Depth The maximum adult size of Dryosaurus is difficult to estimate as all of the known specimens seem to represent animals that were still growing. What is known is that Dryosaurus was a bipedal dinosaur of the bird hipped group. It had a light build with long legs, long neck and a stiff tail, … Read more
In Depth Although not very well known, Jaxartosaurus possesses a hollow helmet shaped crest on top of its skull similar to the better known Corythosaurus. Because this crest is hollow, Jaxartosaurus had been confidently assigned to the Lambeosaurinae group of hadrosaurs which are typified by their hollow crests. The crest of Jaxartosaurus like its lambeosaurine … Read more
In Depth Laosaurus is today considered to be a dubious genus of dinosaur. Though previously considered to be a hypsilophodont (relative of Hypsilophodon), most of the fossil remains once attributed to Laosaurus have ended up being considered to be other genera such as Orodromeus, Dryosaurus and Othnielosaurus. What few fossils that are still assigned to … Read more