In Depth Proplanicoxa is a genus of ornithopod dinosaur that lived in what is now England during the early Cretaceous. So far this dinosaur is only known from partial skeletal remains, and there is even speculation that Proplanicoxa may actually be synonymous with Mantellisaurus. Proplanicoxa was named for its similarity to the genus Planicoxa while … Read more
In Depth Zhenyuanlong is an interesting genus of dromaeosaurid dinosaur. To start Zhenyuanlong has some of the proportionately shortest arms in relation to leg lengths of any dromaeosaurid, and at the time of the description of the genus in 2015, only Austroraptor and Mahakala are known to have been even more extreme. The radius bone … Read more
In Depth Jaklapallisaurus is a genus of sauropodomorph dinosaur that lived in what is now India during the latest Triassic. Further Reading - New dinosaur species from the Upper Triassic Upper Maleri and Lower Dharmaram formations of Central India. - Earth and Environmental Science Transactions of the Royal Society of Edinburgh 101:333-349. - F. E. … Read more
In Depth Named in 2015, the description of Mosaiceratops has led to some interesting insights into our understanding of neoceratopsian dinosaurs. While the general appearance of the skull is similar to genera such as Liaoceratops and Aquilops, the premaxilla and maxilla of the skull, as well as teeth show a similarity to Psittacosaurus. One specific … Read more
In Depth Sirindhorna is a genus of hadrosauroid dinosaur that lived in Thailand during the early Cretaceous. Further Reading - A New Basal Hadrosauroid Dinosaur from the Lower Cretaceous Khok Kruat Formation in Nakhon Ratchasima Province, Northeastern Thailand. - PLoS ONE 10 (12). - Masateru Shibata, Pratueng Jintasakul, Yoichi Azuma & Hai-Lu You - 2015.
In Depth Gryposaurus has a long standing and convoluted association with the genus Kritosaurus to the point that in the 1920‘s Gryposaurus was actually regarded as a synonym to Kritosaurus. Later study has since interpreted Gryposaurus as a distinct genus, but this thinking has had the effect of emptying most of the known material for … Read more
In Depth One of the many Cretaceous era South American titanosaurian sauropods, Argyrosaurus was also one of the first to be named. The holotype of Argyrosaurus is based upon a left forelimb with further post cranial remains being added to the genus later. However in at least one instance some of these additional fossils have … Read more