Argentinosaurus: Fossil Maps and Geological Chart Discover Argentinosaurus with our interactive fossil map and geographical timeline chart. The fossil map pinpoints discovery sites worldwide, click each marker to see fossil ages and detailed references.. The interactive bar chart reveals how many Argentinosaurus fossils were found across different geological ages, helping you visualize its prehistoric history … Read more
In Depth Fossils of Vouivria were originally attributed to the dinosaur Bothriospondylus, however study of the fossils combined with the dubious status of Bothriospondylus meant that by the 1980s the fossils that these fossils were no longer thought to be Bothriospondylus. In 2017 the fossils were used to describe their own genus, Vouivria. Vouivria was … Read more
In Depth Xiongguanlong is what is considered to be an intermediate tyrannosaur, larger than the earlier species, smaller than the larger ones like Gorgosaurus and Alioramus. Xiongguanlong has a long snout on what is a quite narrow skull for a tyrannosaurid. Further Reading – A longirostrine tyrannosauroid from the Early Cretaceous of China. – Proceedings … Read more
In Depth Rugops, meaning ‘wrinkle face’, is an interesting name for a carnivorous dinosaur. This name comes from the numerous impressions in the skull bone from large blood vessels that once ran across the bone surface leaving a wrinkled appearance. It is thought that these extra vessels were here to provide additional oxygenated blood to … Read more
In Depth Xunmenglong is a genus of compsognathid dinosaur that lived in China during the early Cretaceous. Xunmenglong seems to have been a very small dinosaur, small even for a compsognathid. As such, Xunmenglong was probably a small predator, feeding upon insects and very small vertebrates. Further Reading - A new compsognathid theropod dinosaur from … Read more
In Depth An interesting little dinosaur, Dracoraptor was a small theropod dinosaur that roamed around what is now Wales during the early Jurassic. The holotype (first found) individual of Dracoraptor has been reconstructed at just over two meters in length, however, the holotype was a juvenile animal, and adults would have been larger. Dracoraptor was … Read more
In Depth Abydosaurus is the first early Cretaceous era sauropod from the USA to have an identifiable skull. This skull and other post cranial elements confirm its identity as a brachiosaurid sauropod, though one with unusually thin teeth for its kind. Remains of at least four individuals of Abydosaurus have been recovered and it seems … Read more
In Depth Discovered in 2009 and described in 2012, Eoabelisaurus was a ground breaking discovery in our understanding of the abelisaurid theropods. So far most abelisaurids are known from the later stages of the Cretaceous period, yet the holotype Eoabelisaurus has been confidently assigned to the early stages of the Mid Jurassic. Also at around … Read more
In Depth Huaxiagnathus is one of the larger members of the compsognathid group of dinosaurs, although it is smaller than the related Sinocalliopteryx which is also from the Yixian Formation. The fore limbs of Huaxiagnathus are proportionately larger and more developed than other related dinosaurs suggesting that they had a greater role in prey capture … Read more
In Depth Glacialisaurus is the first genus of sauropodomorph dinosaur known from Antarctica. Though only known from a few hind limb bones, these are enough to identify Glacialisaurus as a massospondylid sauropodomorph dinosaur, as well as possible close relative of Lufengosaurus from China. From the same fossil formation that the Glacialisaurus holotype remains are known … Read more