In Depth The lightly built skull of Abrosaurus (which is the inspiration for the name ‘delicate lizard’) clearly indicates that it was a macronarian sauropod, similar to genera such as Brachiosaurus and Camarasaurus. Camarasaurus in particular has been considered to be a very close relative of Abrosaurus because they both seem to represent basal (primitive) … Read more
In Depth The first Masiakasurus remains were described in 2001, and a second set of remains were recovered in 2011. This has allowed some of the original gaps including the premaxilla to be included with the overall morphology. The most striking feature of Masiakasaurus is the way the front teeth point forward and out of … Read more
In Depth With most of the skeleton known and represented by several individuals, Utahceratops is one of the better known ceratopsian dinosaurs, which often are named only from partial skulls. At about five meters long Utahceratops was roughly mid-sized for a quadrupedal ceratopsian, dinosaur, but the skull seems to be oversized with a length of … Read more
In Depth Protohadros is a genus of medium to large ornithopod dinosaur that lived in North America during the late Cretaceous. Protohadros means ‘first hadrosaur)’, and reflects the idea at the time of its description that the genus may represent the earliest true hadrosaur in North America. However, since Protohadros has been named, several new … Read more
In Depth Paranthodon remains were first described when they were incorrectly included with the remains of a parieasaur named Anthodon. The inclusion of these remains also gave the incorrect identification for Anthodon as a dinosaur instead of a parieasaur until 1912 when Robert Broom separated an upper jaw from the genus. While Broom correctly identified … Read more
In Depth Protarchaeopteryx was so named because of a superficial similarity to the genus Archaeopteryx. However today, Protarchaeopteryx is seen as a very primitive member of the Oviraptosauria, and one that bears a strong resemblance to the genus Incisivosaurus. Protarchaeopteryx was a small dinosaur, and one that probably specialised in hunting small animals like lizards … Read more
In Depth Triunfosaurus is a genus of sauropod dinosaur that lived in South America during the early Cretaceous. Described only from an ischium and tail vertebra, Triunfosaurus was originally described as a titanosaur. Further Reading - A new basal titanosaur (Dinosauria, Sauropoda) from the Lower Cretaceous of Brazil. - Journal of South American Earth Sciences … Read more
In Depth A little known theropod dinosaur from China, a 2010 study by Benson et al found Chuandongocoelurus to probably be related to the more complete Monolophosaurus. The partial remains of Chuandongocoelurus are thought to be from a juvenile/subadult individual, and coupled with the overall incomplete nature of them, it is impossible to establish an … Read more
In Depth Overoraptor is a genus of paravian theropod dinosaur that lived in South America during the late Cretaceous. Further reading - New theropod dinosaur from the Upper Cretaceous of Patagonia sheds light on the paravian radiation in Gondwana. - The Science of Nature. 107 (3): Article number 24. - Mat�as J. Motta, Federico L. … Read more
In Depth As of the time of writing dinosaur genera are not particularly well known from Thailand, even though there does seem to be substantial fossil deposits in certain areas of the country. From here we have the discovery of Kinnareemimus, significant in that it may be one of and possibly the oldest ornithomimosaur discovered. … Read more