In Depth Like with many early theropods, especially European ones, Metriacanthosaurus was originally named as a species of Megalosaurus, a dinosaur that in the early years of palaeontology ended up being used as a wastebasket taxon for almost any theropod remains. The initial naming was made by the German palaeontologist Friedrich von Huene, who named … Read more
In Depth Known from only a partial skull, Galesuchus has in the past been considered to be a dubious genus of gorgonopsid. Further Reading - Phylogeny and evolution of the Gorgonopsia with a special reference to the skull and skeleton of GPIT / IR / 7113 (Aelurognathus parringtoni?). - Eberhard Karls University of T�bingen. - … Read more
In Depth Changyuraptor is another of an increasing number of dromaeosaurid dinosaurs that have been dubbed ‘four-winged dromaeosaurs’. This is because Changyuraptor did not just have well developed pennaceous feathers on the arms; they also grew from the back of the legs. The first of these dromaeosaurs to be described was Microraptor which is speculated … Read more
In Depth Named in 2001, Quilmesaurus is so far known only from two right leg bones, and one of those is incomplete. This makes it very hard to establish details about Quilmesaurus, but assuming that the genus has similar body proportions to other abelisaurid dinosaurs then it is possible to scale the existing fossils of … Read more
In Depth Though only known from a partial skull and jaws, Saghacetus is known to have been a dorudontine whale that was hunting in the waters of Egypt during the Eocene. Before being established as a distinct genus, fossils of Saghacetus had been described as species of Dorudon. The exact size of Saghacetus is uncertain, … Read more
In Depth Barapasaurus was an Early Jurassic sauropod that seems to be caught in between other sauropod forms. The vertebrae of Barapasaurus are solid which has seen this sauropod placed within the Cetiosauridae, however the narrow sacrum is more characteristic of the Vulcanodontidae sauropods. Palaeontologists are split as to which placement is the most valid … Read more
In Depth Terrestrisuchus was a small crocodylomorph that was well suited to life on land. The legs were fairly long and supported the body from underneath rather than from the sides and the feet were digitigrade, meaning that Terrestrisuchus walked on its toes. This meant that Terrestrisuchus was a fairly quick and agile predator of … Read more
In Depth Teilhardina is a genus of small primate that is known to have existed during the early Eocene. Perceived to have been similar to a marmoset, fossils of Teilhardina have been reported from Belgium, France and China, but are particularly common from the USA. Further Reading - Early Eocene Teilhardina brandti: oldest omomyid primate … Read more
In Depth As a basal therizinosaur Beipiaosaurus revealed some surprising characteristics, hence the species name inexpectus. One of these characteristics is the underdeveloped inner toes, something that is very different to later therizinosaurids which have all four toes developed and in contact with the ground. This has been taken as an indication of a three … Read more
In Depth Another European ornithopod that was once described as a species of Camptosaurus, Cumnoria was established as a distinct genus in 1888. At three and a half meters long for the first (and at the time of writing only) individual found, it may be that Cumnoria was a fairly small ornithopod. However, studies of … Read more