In Depth Although named from only a maxilla and tooth, the remains of this dinosaur are still complete enough to confidently identify it as an iguanodont. In life Siamodon would have been a medium to large sized ornithopod dinosaur that would have been primarily quadrupedal, but also occasionally bipedal. Although identified as being separate, Siamodon … Read more
In Depth Avimimus acquired its name from its bird like characteristics that have led to some controversy as to how much like a bird it really was. Like in modern birds the hand bones were fused together, and the presence of pronounced quill knobs on the lower arm bones confirms that Avimimus did at least … Read more
In Depth A possible close relative of Gasparinisaura, Anabisetia was a fairly small ornithopod dinosaur that roamed around what would become South America during the early stages of the late Cretaceous. Anabisetia is known mostly from the partial post cranial remains of four specimens and a single partial brain case and lower jaw. The lack … Read more
In Depth A close relative to Vulcanodon, Tazoudasaurus was quite a bit larger than its more famous cousin, though still small when compared to many of the sauropods of the late Jurassic. Also, although known only from partial remains, Tazoudasaurus is still represented by the most complete early Jurassic sauropod remains known. V-shaped wear patterns … Read more
In Depth Phaedrolosaurus is a problematic genus of dinosaur because at the time of writing the only fossil specimen for this genus is a single tooth. Partial post cranial remains that were once attributed to the genus upon the basis that they were found near the tooth have since been removed and used to establish … Read more
In Depth Although the name Anodontosaurus means ‘toothless lizard’, the teeth were only lost when the holotype skull of Anodontosaurus became compressed during fossilisation. Anodontosaurus was once synonymised with the genus Euoplocephalus, but a re-description of Dyoplosaurus in 2009 by Arbour et al. (also once synonymised with Euoplocephalus) led to the original Anodontosaurus fossils being … Read more
In Depth Ajnabia is a genus of hadrosaurid dinosaur that lived during the late Maastrichtian period towards the end of the Cretaceous period. Ajnabia made headlines in the paleontological world when it was described as this represented the first time that hadrosaurid dinosaur fossils had been found in Africa. Hadrosaurid dinosaurs were for a long … Read more
In Depth Alioramus has stirred a lot of interest and controversy since its discovery, and even though Alioramus has earned worldwide popularity it was for a long time only known from a partial skull and three metatarsals (foot bones). Another problem was the fact that when reconstructed, the skull was narrow and low like in … Read more
Discovery & Reconstruction Spinosaurus as we know it today did not begin to come into existence until the 1990’s, something that is quite surprising when you think that it was first described in 1915. The reason for this is that there has been no choice but to study only the most partial of remains, a … Read more
In Depth At 1.4 meters long, Tylocephale was towards the smaller end of the size scale for a pachycephalosaur. Despite this, Tylocephale managed to evolve the tallest head dome of any currently known pachycephalosaur genera. Tylocephale also likely shared its habitat with the larger pachycephalosaur Prenocephale. Further Reading - Pachycephalosauria, a new suborder of ornithischian … Read more