In Depth Superficially, Utahraptor appears to be an earlier, scaled up version of Deinonychus. Specimens of Utahraptor are fragmentary but suggest a potential size of up to seven meters long, with some more conservative estimates falling nearer six meters long. These estimates make Utahraptor a contender for one of the largest known dromaeosaurid dinosaurs, but … Read more
In Depth In modern times Szechuanosaurus is widely regarded as a dubious genus because it has only been described from a collection of isolated teeth. Also, because these teeth do not really have any specifically characteristic features, it is highly unlikely that skeletal remains could be later attributed to these teeth (like what happened with … Read more
In Depth Elaphrosaurus has been something of an enigma for palaeontologists as while it is generally regarded as a ceratosaur, its proportions are similar to some other kinds of theropods. The overall appearance of Elaphrosaurus is that of a lightweight hunter that relied more upon speed rather than strength to take down prey. The tibia … Read more
In Depth Smaller velociraptorine dromaeosaurs seem to have been one of the most important types of dinosaur in Asia during the Late Cretaceous as evidenced by the ever growing number of remains and genera. Linheraptor was similar in form to most others such as Velociraptor and it may have lived and hunted in pretty much … Read more
In Depth Beibeilong is a genus of oviraptorid dinosaur that lived in Asia during the earlier stages of the late Cretaceous. The genus was described from fossilised embryos and eggs. Adult details including maximum size of Beibeilong are unknown at the time of writing, but the original describers of the genus speculated that when fully … Read more
In Depth Ojoraptorsaurus is a genus of oviraptosaur that lived in what is now New Mexico during the earlier stage of the Maastrichtian. Although only named from fossilised pubis bones, Ojoraptorsaurus has been identified as a caenagnathid oviraptosaur, making it a closer relative to genera such as Elmisaurus and Gigantoraptor. With the holotype fossils of … Read more
In Depth Many people often think that Sinraptor will be another dromaeosaurid dinosaur, when in actual fact it was a medium sized theropod of a similar build to Allosaurus. This is not the first instance that a non dromaeosaurid dinosaur has been given the inclusion of ‘raptor’ in its name with others such as Fukuiraptor … Read more
In Depth The almost complete specimen of Monolophosaurus was first discovered in 1984. This exciting find was initially named ‘Jiangjunmiaosaurus’ after Jiangjunmiao, an abandoned inn near where the skeleton was found, but it was never an official name hence the lack of italics and its description as a nomen nudum (a name that is not … Read more
In Depth Although many people are familiar with the dinosaur Oviraptor, what they don’t realise is that its modern day reconstruction of this oviraptorid is often based upon the more abundant remains of Citipati. Named after two beheaded monks who appear in Tibetan buddhist folklore, Citipati is also one of the larger members of its … Read more
In Depth The holotype individual of Microvenator was first discovered by the famed American palaeontologist Barnum Brown in 1933. Brown noted that the holotype individual had what he thought was a disproportionately large head, and so came up with the name Megadontosaurus. A reference to the large head, but also the teeth found near it. … Read more