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
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
Brontosaurus: Research Database Diplodocidae · Late Jurassic (~156-147 MYA) · Morrison Formation, Colorado & Wyoming, USA Research Note: Brontosaurus is one of the most famous dinosaurs, known from multiple well-preserved specimens. A landmark 2015 revision of Diplodocidae confirmed Brontosaurus as a valid genus distinct from Apatosaurus — overturning a century of scientific consensus. Research Finding … Read more
Thanatotheristes: Research Database Theropoda · Cretaceous · North America Research Note: Thanatotheristes was a tyrannosaurid theropod from the Cretaceous of North America, providing important data on theropod diversity and evolution. Research Finding Status Grade Year Method Citation Impact Smith & Persons 2015: Thanatotheristes and tyrannosaur diversity in the Cretaceous Cretaceous Research Confirmed A … Read more
In Depth Eousdryosaurus is a genus of small ornithopod dinosaur that lived in Portugal during the late Jurassic. The name Eousdryosaurus means ‘eastern Dryosaurus’, a reference to how Eousdryosaurus is similar to the genus Dryosaurus, but globally lived further to the east, Eousdryosaurus in Portugal, and Dryosaurus in North America. Further Reading - A new … Read more
Crichtonsaurus: Research Database Ankylosauridae (Ornithischia) · Late Cretaceous (~99–98 MYA) · Asia — China (Shandong) Research Note: Crichtonsaurus was an ankylosaurid from the Late Cretaceous of Shandong Province, China. As an Asian ankylosaurid, it provides important data on ankylosaur diversity and paleobiogeography in the Late Cretaceous of East Asia. Research Finding Status Grade … Read more