In Depth Originally uncovered during the 1960s, the holotype teeth of Trimucrodon were originally thought to be from a small mammal. In 1973 however Richard Thulborn recognised that the teeth were actually from a small dinosaur, though his paper describing them and naming the genus did not actually get formally published until 1975. Today Trimucrodon … Read more
Pycnonemosaurus: Research Database Titanosauria (Sauropoda) · Late Cretaceous (~83-70 MYA) · South America — Brazil (Vale da Floresta Formation) Research Note: Pycnonemosaurus was a titanosaurian sauropod from the Late Cretaceous of Brazil — one of the largest known dinosaurs from Brazil and an important taxon for understanding titanosaur evolution in South America. Research … Read more
In Depth Named in 1856 by Joseph Leidy on the description of teeth, Palaeoscincus is today considered a highly dubious genus of ankylosaur. While over the years other fossil material has been assigned to the genus, most of this material has now been reassigned to other dinosaur genera including the dinosaurs Euoplocephalus, Paranthodon and even … 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
In Depth Crittendenceratops is a genus of ceratopsian dinosaur that lived in Western portion of North America during the late Cretaceous. While many fossils of various types of animals have been discovered in the Fort Crittenden Formation of Arizona, Crittendenceratops is the first distinct genus to be named from this formation. Further Reading - A … Read more
Zby: Research Database Titanosauria (Sauropoda) · Late Cretaceous (~70–68 MYA) · Europe — Portugal (Lourinhã Formation) Research Note: Zby was a titanosaurian sauropod from the Late Cretaceous of Portugal — one of the few named titanosaurs from Europe. As a member of the Titanosauria, it provides data on European Cretaceous dinosaur faunas and titanosaur … Read more
Alxasaurus: Research Database Therizinosauria (Theropoda) · Early Cretaceous (~120 MYA) · Asia — China (Inner Mongolia) Research Note: Alxasaurus was a therizinosaurian theropod from the Early Cretaceous of Inner Mongolia, China. As one of the earliest known large therizinosaurs, it provides important data on the evolutionary transition from carnivorous to herbivorous theropods. Research … Read more
In Depth Nanningosaurus is a genus of hadrosaurid dinosaur that lived in China during the late Cretaceous, and is also the first genus of hadrosaur identified as living in southern China. Further Reading - The first hadrosaurid dinosaur from southern China. Acta Geologica Sinica 81(4):550-554. - J. Mo, Z. Zhao, W. Wang & X. Xu … Read more
Adratiklit: Research Database Stegosauria (Dinosauria) · Middle Jurassic (~168-165 MYA) · Gondwana — Morocco (Touraine Platform) Research Note: Adratiklit was a stegosaurian dinosaur from the Middle Jurassic of Morocco — the oldest known stegosaur from Gondwana and an important taxon for understanding stegosaur evolution. Research Finding Status Grade Year Method Citation Impact Gvirtzman … Read more