In Depth Migmanychion was a small mysterious theropod dinosaur that lived about 121 million years ago during the Early Cretaceous of what is now Inner Mongolia, China. Its name means “claw mixture,” a reference to the unusual differences in the shape of its hand claws. The main specimen preserves parts of the ribs, a partial … Read more
Euoplocephalus: Research Database Ankylosauridae (Ornithischia) · Late Cretaceous (~76–72 MYA) · North America — Canada, Alberta; USA, Montana (Dinosaur Park, Two Medicine Formations) Research Note: Euoplocephalus was one of the most heavily-armored ankylosaurid dinosaurs from the Late Cretaceous of North America — a four-legged tank covered in bony plates (osteoderms), with a massive club … Read more
Wudingloong is an early massopodan sauropodomorph dinosaur from the Lower Jurassic Yubacun Formation in Yunnan Province, China. It is represented by a partial skeleton including the skull, neck vertebrae, and forelimb. It is the oldest sauropodomorph known from East Asia and an important early member of Massopoda. Description Wudingloong was a lightly built, plant-eating dinosaur. … Read more
Fossil Map Interactive fossil Map of Dubreuillosaurus, along with its chronological bar chart of fossil discoveries. In Depth Discovered in 1994 and originally classed as a species of Poekilopleuron, Dubreuillosaurus (Poekilopleuron valesdunensis.) was placed into its own genus in 2005 on the basis of differences of the post cranial remains of the two. Dubreuillosaurus itself … Read more
Abelisaurus: Research Database Abelisauridae · Late Cretaceous (~83-80 MYA) · Patagonia, Argentina Research Note: Abelisaurus is known from a single incomplete skull. Direct peer-reviewed studies specifically on Abelisaurus are limited. Findings below include verifiable research on Abelisaurus plus informed inferences from better-studied Abelisauridae relatives (Carnotaurus, Majungasaurus). Research Finding Status Grade Year Method Citation Impact Original … Read more
Ophthalmosaurus: Research Database Ichthyosauria (Sauropterygia) · Late Jurassic (~165-160 MYA) · Europe — England, Germany Research Note: Ophthalmosaurus was an ichthyosaur from the Late Jurassic of Europe — a fearsome aquatic predator and one of the most recognizable ichthyosaurs known from exceptionally preserved fossils. Research Finding Status Grade Year Method Citation Impact Maisch … Read more
Intro Archaeocursor asiaticus, a small-bodied (~1 meter in body length) ornithischian dinosaur based on a nearly complete left femur found in the Ziliujing Formation of Chongqing, China. Archaeocursor asiaticus is the earliest ornithischian yet discovered in Asia. This Discovery is important as it shows the earliest-diverging ornithischian dinosaur in Asia. Size and Body Structure of … Read more
Levnesovia: Research Database Hadrosauridae (Ornithischia) · Late Cretaceous (~92–88 MYA) · Asia — Uzbekistan (Bissekty Formation) Research Note: Levnesovia was a hadrosaurid from the Late Cretaceous Bissekty Formation of Uzbekistan. As a hadrosaurid from Central Asia, it provides important data on hadrosaurid diversity and biogeography in the Cretaceous of Asia. Research Finding Status … Read more
In Depth Emausaurus is a primitive genus of thyreophoran dinosaur that lived in Europe during the early Jurassic. Emausaurus was first described by a description of the skull, though osteoderms (bony plates that were in the skin) are also known. Emausaurus seems to have been a small to mid-sized dinosaur that would have relied upon … Read more
Litargosuchus: Research Database Spinosauridae (Theropoda) · Early Cretaceous (~110 MYA) · South America — Brazil (Araripe Basin) Research Note: Litargosuchus was a spinosaurid from the Early Cretaceous of Brazil — a semi-aquatic theropod and an important taxon for understanding spinosaurid evolution and ecology in the Cretaceous of South America. Research Finding Status Grade … Read more