Siamraptor: Research Database Carcharodontosauridae (Theropoda) · Early Cretaceous (~145-140 MYA) · Asia — Thailand (Sao Khua Formation) Research Note: Siamraptor was a carcharodontosaurid theropod from the Early Cretaceous of Thailand — one of the first known carcharodontosaurids from Southeast Asia and an important taxon for understanding theropod diversity and biogeography in the Cretaceous of … Read more
Eucnemesaurus: Research Database Sauropodomorpha (Dinosauria) · Late Triassic (~215–210 MYA) · Africa — South Africa (Elliot Formation) Research Note: Eucnemesaurus was a basal sauropodomorph dinosaur from the Late Triassic of South Africa — one of the oldest known dinosaurs from the Elliot Formation and a critical taxon for understanding the early diversification of sauropodomorph … Read more
In Depth Due to the incomplete remains not a lot is known about this dinosaur other than it is probably a basal titanosauriform. The genus name is a reference to the appearance of the tail vertebrae while the species name of R. cooneyi is in honour of J. P. Cooney who owned the land where … Read more
In Depth The name Tsagantegia means ‘of Tsagen-Teg’ which can be further translated to Englishto mean ‘of White Mountain’, and this is a reference to the location where the holotype skull of Tsagantegia was first discovered. Tsagantegia is currently represented by a single skull, the features of which clearly identify Tsagantegia as an ankylosaurid dinosaur. … Read more
Dryptosaurus: Research Database Tyrannosauroidea (Theropoda) · Late Cretaceous (~67-65 MYA) · North America — USA (New Jersey, Chesapeake Bay) Research Note: Dryptosaurus was a tyrannosauroid theropod from the Late Cretaceous of New Jersey — one of the earliest known tyrannosauroids and an important taxon for understanding tyrannosauroid evolution. Research Finding Status Grade Year … Read more
Saurornitholestes: Research Database Dromaeosauridae (Theropoda) · Late Cretaceous (~75 MYA) · North America — Canada (Alberta, Dinosaur Park Formation) Research Note: Saurornitholestes was a dromaeosaurid theropod from the Late Cretaceous of Canada — an important taxon for understanding dromaeosaurid diversity and evolution in North America during the latest Cretaceous. Research Finding Status Grade … Read more
In Depth The history of Galeamopus goes all the way back to 1902 when the first fossils were discovered in the US state of Wyoming. In 1906 the fossils were assigned to the Diplodocus genus, but in 1924 they were given their own species D. hayi, upon the basis that they were clearly different to … Read more
Compsosuchus: Research Database Reptilia (Theropoda: Spinosauridae) · Late Cretaceous (~110 MYA) · Asia — China Research Note: Compsosuchus was a spinosaurid theropod from the Late Cretaceous of China — significant for understanding spinosaurid diversity and evolution in Asia during the Cretaceous. Research Finding Status Grade Year Method Citation Impact Malafaia & Gasulla 2019: … Read more
Neimongosaurus: Research Database Titanosauria (Sauropoda) · Late Cretaceous (~96–89 MYA) · Asia — China (Henan, Xinying Formation) Research Note: Neimongosaurus was a titanosaurian sauropod from the Late Cretaceous of China — one of the more completely known Asian titanosaurs. As a member of the Titanosauria, it provides data on titanosaur diversity and the Cretaceous … Read more
Marasuchus: Research Database Lagerpetidae (possibly Dinosauriformes) · Middle Late Triassic (~235 MYA) · Ischigualasto Formation, Argentina Research Note: Marasuchus is a small Triassic predator from the Ischigualasto Formation, significant for its position near the dinosaur-bird evolutionary lineage. Known from limited but well-preserved specimens. It is potentially a synonym of Lagosuchus. Research Finding Status Grade Year … Read more