Austroraptor: Research Database Unenlagiidae (Theropoda) · Late Cretaceous (~70 MYA) · South America — Argentina (Maastrichtian) Research Note: Austroraptor was a large unenlagiid dromaeosaurid from the Latest Cretaceous of Argentina, one of the largest known dromaeosaurids at approximately 5–6 metres long. Its discovery revealed that large predatory dromaeosaurids persisted in South America until the … Read more
Ornithodesmus: Research Database Pterosauria (Archosauromorpha) · Early Cretaceous (~125-120 MYA) · Europe — England (Isle of Wight, Wessex Formation) Research Note: Ornithodesmus was a pterosaur from the Early Cretaceous of England — one of the earliest known pterodactyloid pterosaurs from Europe and an important taxon for understanding pterosaur evolution and diversity in the Cretaceous … Read more
Acheroraptor: Research Database Tyrannosauroidea (Theropoda) · Late Cretaceous (~67 MYA) · North America — USA (Montana, Hell Creek Formation) Research Note: Acheroraptor was a tyrannosauroid from the Late Cretaceous Hell Creek Formation of Montana. As a member of Tyrannosauroidea, it provides important data on the diversity of small predatory dinosaurs in the Latest Cretaceous … Read more
Unquillosaurus: Research Database Tyrannosauroidea (Theropoda) · Late Cretaceous (~70–66 MYA) · South America — Argentina (El Riberal Formation) Research Note: Unquillosaurus was a large tyrannosauroid theropod from the Late Cretaceous of Argentina — one of the few large theropods known from South America during the latest Cretaceous and an important data point for understanding … Read more
In Depth The one thing that immediately stands out about Dakotaraptor at first glance is simply the large size of this dromaeosaurid dinosaur. Most dromaeosaurid dinosaurs measure in at under two meters in length, with a few genera ranging between two and three meters long. The Holotype individual of Dakotaraptor however has a reconstructed length … Read more
Achillobator: Research Database Dromaeosauridae (Theropoda) · Late Cretaceous (~96–89 MYA) · Asia — Mongolia (Bayan Shire Formation) Research Note: Achillobator was a large dromaeosaurid theropod from the Late Cretaceous of Mongolia. As one of the larger known dromaeosaurids, it provides important data on theropod diversity and ecology in Latest Cretaceous Asia. Research Finding … Read more
Luanchuanraptor: Research Database Dinosauria (Theropoda: Dromaeosauridae) · Late Cretaceous (~70 MYA) · Asia — China (Henan Province) Research Note: Luanchuanraptor was a dromaeosaurid theropod from the Late Cretaceous of Henan Province, China — significant for being one of the few known dromaeosaurs from this region, providing data on the diversity and distribution of this … Read more