In Depth At just over half a meter in length, Shuvuuia is not just one of the smallest alvarezsaurs, it is among the smallest known dinosaurs. It is thanks to this small size that the Shuvuuia holotype was so well preserved because it could be buried much more quickly than a larger dinosaur (larger dinosaurs … Read more
In Depth Odontochelys translates to English as ‘toothed turtle with a half-shell’, and this is in reference to the fact that only the plastron (bottom half) of the shell is developed. How the shell formed though is a matter of debate amongst palaeontologists as some consider Odontochelys to be a transitory form in the evolution … Read more
In Depth Coelophysis is frequently used as an example of the early dinosaurs. Its bipedal stance from two legs that supported its body from underneath as opposed to sticking out to the sides, smaller arms and head mounted on an ‘S curved’ neck give it the distinctive theropod look. Coelophysis also had sharp recurved teeth … Read more
In Depth Originally uncovered during the 1960s, the holotype teeth of Trimucrodon were originally thought to be from a small mammal. In 1973 however Richard Thulborn recognised that the teeth were actually from a small dinosaur, though his paper describing them and naming the genus did not actually get formally published until 1975. Today Trimucrodon … Read more
In Depth Afrotapejara is a genus of tapejarid pterosaur that lived in North Africa at the time of the Early/Late Cretaceous boundary. Further Reading - new tapejarid (Pterosauria, Azhdarchoidea) from the mid-Cretaceous Kem Kem beds of Takmout, southern Morocco. - Cretaceous Research. - David M. Martill, Roy Smith, David M. Unwin, Alexander Kao, James McPhee … Read more
In Depth Foxemys is a genus of bothremydid turtle that is considered to have been similar to Polysternon as well as closely related to Puentemys. Further Reading - Foxemys, a new side-necked turtle (Bothremydidae, Pelomedusoides) from the late Cretaceous of France. - American Museum Novitates 3251 (3251): 1–19. Retrieved 19 January 2012. - Haiyan Tong, … Read more
In Depth At the time of writing the only parts of the dinosaur Pycnonemosaurus that have been recovered include some legs and hip bones as well as caudal (tail) vertebrae and teeth. These parts however are enough to identify Pycnonemosaurus as an abelisaurid theropod dinosaur. Like with other abelisaurs, Pycnonemosaurus would be expected to have … Read more
In Depth Leptopleuron was a genus or procolophonid reptile that lived in Scotland during the Late Triassic. The exact diet of Leptopleuron is uncertain, though procolophonids in the late Triassic seem to be more herbivorous than earlier procolophonids were more insectivorous. Further Reading - The braincase structure of Leptopleuron lacertinum Owen (Parareptilia: Procolophonidae). - Journal … Read more
In Depth Named in 1856 by Joseph Leidy on the description of teeth, Palaeoscincus is today considered a highly dubious genus of ankylosaur. While over the years other fossil material has been assigned to the genus, most of this material has now been reassigned to other dinosaur genera including the dinosaurs Euoplocephalus, Paranthodon and even … Read more
In Depth The one thing that immediately stands out about Dakotaraptor at first glance is simply the large size of this dromaeosaurid dinosaur. Most dromaeosaurid dinosaurs measure in at under two meters in length, with a few genera ranging between two and three meters long. The Holotype individual of Dakotaraptor however has a reconstructed length … Read more