In Depth One of the troodonts, Byronosaurus aquired its name after being named after Byron Jaffe, a supporter of the American Museum of Natural History Paleontological Expeditions. One of the unearthed skulls of B. jaffei is the best persevered skull specimen of any troodont, and shows two adaptions that are unique among the currently known … Read more
In Depth Although as the name suggests this was the first dromaeosaurid to be discovered, it was not well understood until some of the other dromaeosaurids were discovered and studied. This has allowed for the gaps to be filled in, giving a much more accurate representation of what Dromaeosaurus was like. While Dromaeosaurus still had … Read more
In Depth Cristatusaurus is recorded as a genus of spinosaurid dinosaur that lived in Africa during the Cretaceous. Africa has been an important source of spinosauird fossil material, however usually only snouts and teeth, and a few isolated bone fragments are found. Unfortunately, Cristatusaurus is no exception, and at the time of writing only some … Read more
In Depth Ligabuesaurus is a genus of titanosaurid dinosaur that lived in Argentina towards the end of the early Cretaceous. Ligabuesaurus was named in honour of Dr Giancarlo Ligabue, while the type species L. leanzai was named in honour of Dr. Hector Leanza, the geologist who discovered the holotype specimen. Further Reading - Ligabuesaurus leanzai … Read more
In Depth Bactrosaurus is one of the earliest hadrosauroids known from Asia, and also one of the best known. Bactrosaurus still had three stacked teeth for each tooth in the maxilla, an iguanodont feature that reveals the ancestry of the genus. However, Bactrosaurus also has a number of hadrosauroid features, particularly those of lambeosaurines (hollow … Read more
In Depth Mojoceratops was discovered by a close examination of some skulls that had been assigned to the more well Chasmosaurus. The more the skulls were studied the more differences were discovered, resulting in the creation of a new genus. The palaeontologists who were looking the skulls over initially came up with name Mojoceratops when … Read more
In Depth Ouranosaurus similarities and differences to Iguanodon Although initially classed as an iguanodontid dinosaur, subsequent studies of Ouranosaurus fossils have revealed it to be a form of basal hadrosaur. Despite this, Ouranosaurus still bears some features that are similar to the more famous Iguanodon, specifically the forelimb. The hands of the forelimbs still have … Read more
In Depth When remains of Shantungosaurus were first found they were found in a bone bed of at least five individual dinosaurs. Though none of these were of a complete skeleton, composites of incorporating the bones of more than one individual have been assembled with the largest producing a hadrosaurid dinosaur just over sixteen and … Read more
In Depth Tethyshadros is without doubt one of the more interesting genera of hadrosauroid dinosaurs. For a start hadrosauroids are not particularly well known from Europe, though large ornithopod dinosaurs which were ancestral to them are. Tethyshadros also seems to have been a dwarf hadrosaur, growing to an average length of four meters. This reduction … Read more
In Depth In a nutshell Kotasaurus is one of the most primitive sauropod dinosaurs discovered. So primitive is Kotasaurus that the genus still possesses features that are known in sauropodomorph dinosaurs. This led to a lot of initial confusion over whether Kotasaurus was an advanced sauropodomorph, or a primitive sauropod, though today the interpretation of … Read more