In Depth The holotype tooth of this genus was originally described by the German palaeontologist Werner Janensch in 1920 as belonging to the genus Labrosaurus. The first reassignment came about when Labrosaurus was declared to be a synonym of Allosaurus, but the teeth in question were not seen to be similar to those known for … Read more
In Depth Further Reading - A new sauropod dinosaur of Cretaceous from Jingshan, Zhejiang province. - Vertebrata PalAsiatica 39(4):272-281. - F. Tang, X.-M. Kang, Z.-S. Jin, F. Wei & W.-T. Wu - 2001.
In Depth Sveltonectes is a member of the Platypterygiinae ichthyosaurs due to is resemblance to others of this group such as Platyptergius. This group is nested within the Ophthalmosauridae which is typified by the genus Ophthalmosaurus. Sveltonectes stands out from its relatives for its even more streamlined, lightweight build, as well as possessing differently formed … Read more
In Depth Yizhousaurus is a genus of sauropodomorph dinosaur that lived in Asia during the early Jurassic, and is a rare example of such a dinosaur where the skull is known, and in an almost perfect state. Further Reading - A new sauropodiform dinosaur with a ‘sauropodan’ skull from the Lower Jurassic Lufeng Formation of … Read more
In Depth Originally described as a species of Kronosaurus, K. boyacensis, was re-described as a distinct genus Monquirasaurus, in 2021. Monquirasaurus was a large pliosaur that swam around in the waters around Central America during the early Cretaceous. Monquirasaurus would have easily been among the larger oceanic predators of this time and easily capable of … Read more
In Depth Nedcolbertia is a genus of theropod dinosaur known to have lived in the Western portion of the United States during the early Cretaceous. Nedcolbertia is known from the partial remains of at least three individuals, though much of these remains were damaged by erosion before their discovery. Still, enough is known about Nedcolbertia … Read more
In Depth Teleidosaurus is a genus of primitive form thalatosuchian marine crocodile. Originally named as a species of Teleosaurus, Teleidosaurus was established as a distinct genus in 1869, and was considered to possibly be one of the oldest marine crocodiles until 2015 when the genus Zoneait was named. As a metriorhynchoid, Teleidosaurus would have been … Read more
In Depth A European relative of Doswellia, Jaxtasuchus were doswellian archosaurs that may have been semi aquatic in the behaviour. This is indicated by the observation that the remains of aquatic invertebrates and temnospondyl amphibians were found alongside the holotype remains of Jaxtasuchus which were preserved in mudstone. Isolated teeth and a relation to other … Read more
In Depth Desmatosuchus is one of the better known aetosaurs that were squat quadrupedal archosaurs that fed upon low growing vegetation. This diet is suggested by the presence of peg like teeth that were best suited for stripping off fronds of fern-like vegetation. Not only is Desmatosuchus one of the better known of its group … Read more
In Depth Bromsgroveia is a genus of poposaurid rauisuchian that lived in England during the early Triassic. Bromsgroveia was named after the Bromsgrove Sandstone Formation where the holotype fossils were discovered. Further Reading - The poposaurid thecodontian Teratosaurus suevicus v. Meyer, plus referred specimens mostly based on prosauropod dinosaurs, from the Middle Stubensandstein (Upper Triassic) … Read more