Monolophosaurus: Research Database Avetheropoda (Theropoda) · Middle Jurassic (~170 MYA) · Asia — China (Shishugou Formation, Xinjiang) Research Note: Monolophosaurus was a medium-sized theropod from the Middle Jurassic of Xinjiang, China, distinguished by the single large crest on its skull — the feature that gives it its name meaning “single-crested lizard.” As one of … Read more
Unaysaurus: Research Database Prosauropoda (Sauropodomorpha) · Late Triassic (~225-215 MYA) · South America — Brazil (Santa Maria, Caturrita Formation) Research Note: Unaysaurus was a prosauropod sauropodomorph from the Late Triassic of Brazil — one of the oldest known dinosauriforms from South America and an important taxon for understanding the origin of sauropods and the … Read more
In Depth Jiangjunosaurus is a genus of stegosaurid dinosaur that lived in China during the earlier part of late Jurassic. Though Jiangjunosaurus is far from complete, this stegosaur is known to have had a skull that was elongated in proportion to its width. Jiangjunosaurus was found by itself, and because generals are buried in temples … Read more
In Depth Yimenosaurus is one of the more popular sauropodomorph dinosaurs thanks to the large number of fossils from several individuals that make up the genus. At the time of writing the only uncertainty concerning Yimenosaurus are the limbs, which have a distinct lack of representation. Yimenosaurus is also known to have easily attained sizes … Read more
Kamuysaurus: Research Database Hadrosauridae (Ornithischia) · Late Cretaceous (~72-70 MYA) · Asia — Japan (Hokkaido, Hakobuchi Formation) Research Note: Kamuysaurus was a hadrosaurid ornithischian from the Late Cretaceous of Japan — one of the few known dinosaurs from Japan and an important taxon for understanding hadrosaurid diversity and biogeography in Asia during the Late … Read more
Citipati: Research Database Theropoda · Cretaceous · Unknown Research Note: Citipati was a theropoda from the Cretaceous of Unknown, providing important data on prehistoric life and ecosystem dynamics. Research Finding Status Grade Year Method Citation Impact CLARK NORELL ROWE 2002: Citipati and related taxa American Museum Novitates Confirmed A 2002 Fossil
Limaysaurus: Research Database Titanosauria (Sauropoda) · Late Cretaceous (~100–94 MYA) · South America — Argentina (Cerro del Pueblo Formation) Research Note: Limaysaurus was a titanosaurian sauropod from the Late Cretaceous of Argentina. As a member of Titanosauria, it provides important data on sauropod diversity and evolution in South America during the Cretaceous. Research … Read more
In Depth Centrosaurus acquired its named from the numerous bony projections that run along the edges of its frill. Aside from these a large nasal horn extends upwards from the top of the snout, and a pair of small horns project from the eyebrow. Two more hornlets hook down from the top of the frill, … Read more
Minmi: Research Database Ankylosauria (Thyreophora) · Early Cretaceous (~119–113 MYA) · Australia-Antarctica — Australia, Queensland (Mackunda Formation) Research Note: Minmi was an ankylosaur from the Early Cretaceous of Australia — one of the few named dinosaurs from Australia and Antarctica. As a relatively basal ankylosaur with well-preserved armor, it provides data on ankylosaur evolution … Read more
In Depth When first described in 1988 by Zhang Yihun this sauropod dinosaur genus was named as Protognathus. However it was soon realised that the name Protognathus had already been used to name a genus of beetle, so the dinosaur was renamed buy George Olshevsky to become Protognathosaurus in order to make it distinct from … Read more