Italic title Taxobox name Araeoscelis image Araeoscelis.jpg status fossil fossil range Fossil range Early Permian regnum Animal ia phylum Chordata classis Sauropsida subclassis Diapsida ordo Araeoscelida familia Araeoscelidae genus AraeoscelisAraeoscelis is an extinct genus of reptile , and one of the earliest diapsid s. Fossils have been found in the United States , dating from the early Permian period. Araeoscelis was around convert 60 cm ft long, and superficially resembled a modern lizard . It differed from earlier forms, such as Petrolacosaurus , in that its teeth were larger and blunter possibly they were used for cracking insect carapace s. ref name EoDP cite book editor Palmer, D. year 1999 title The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals publisher Marshall Editions location London page 82 isbn 1 84028 152 9 ref Unlike its close relatives, which exhibit the two pairs of skull openings characteristic of diapsid s, in Araeoscelis the lower pair of temporal fenestra e were closed with bone , resulting in an euryapsid condition. This would have made the skull more solid, presumably allowing a more powerful bite. ref name EoDP References reflist cite book author Carroll, Robert L. year 1988 title Vertebrate paleontology and evolution location New York publisher W.H. Freeman and Co cite book author Benton, Michael J. year 2000 title Vertebrate paleontology publisher Blackwell Science location Oxford edition 2nd edition cite book author Simon and Schuster year 1999 title The Simon and Schuster Encyclopedia of Dinosurs and Prehistoric Creatures publisher Marshall Publishing location Great Britain edition 1rst edition Category Prehistoric reptiles Category Permian reptiles Category Prehistoric reptiles of North America paleo reptile stub de Araeoscelis it Araeoscelis nl Araeoscelis pl Areoscelis sk Araeoscelis zh ... more details
2 clade 1 Araeoscelis 2 Aphelosaurus Phylogenetic relationships after deBraga and Reisz 1995 ... in France Aphelosaurus , Germany Kadaliasaurus and the United States Dictybolos , Zarcasaurus , Araeoscelis ... of the Lower Permian reptile Araeoscelis . Journal of Vertebrate Paleontology 4 1 57 67. Swanson ... 5 1 65. Vaughn, P. P. 1955 . The Permian reptile Araeoscelis restudied. Bulletin of the Harvard ... more details
Unreferenced date December 2009 The term Prehistory prehistoric reptile covers a broad category that is intended to help distinguish the dinosaur s from other prehistoric reptiles. As the dinosaurs, because of their long and successful reign for many millions of years, are almost exclusively dealt with in their own category of prehistoric life . The category covers all the non dinosaurian reptiles which are often erroneously considered to be dinosaur s, such as the sea faring varieties of plesiosaur s and the flying pterosaur s. Also included are ancient crocodile s such as Deinosuchus . For information on the mammal like reptiles mammal like reptiles therapsid s and other amniote s often considered reptiles including the well known Dimetrodon , which are not part of the clade Sauropsid a with which Reptilia is generally synonymized , see Synapsid amniotes related to mammals . For information on the ancestors of reptiles, traditionally classified as labyrinthodont amphibian s, see Reptiliomorpha reptile like tetrapod s . List of prehistoric reptiles by group Early reptile s Silvanerpeton Captorhinidae Captorhinids Protorothyrididae Protorothyridids Hylonomus Early anapsid s Brazilosaurus Elginia Hylonomus Hypsognathus Labidosaurus Mesosaurus Millerettid s Milleretta Pareiasaurus Scutosaurus Bolosaurid s Pareiasaur s Bradysaurus Scutosaurus Anthodon reptile Anthodon Turtle s, tortoise s and terrapin s Archelon Meiolania Palaeotrionyx Proganochelys Pleurosternon Stupendemys Testudo atlas Early diapsid s Araeoscelida ns Petrolacosaurus Spinoaequalis Araeoscelis Avicephala ns Protoavis Longisquama Coelurosauravus Champsosaurus Youngina Thalattosauria ns Askeptosaurus Eosuchia ns Lepidosauria ns Ichthyosaur s Californosaurus Cymbospondylus Shonisaurus Ichthyosaurus Mixosaurus Ophthalmosaurus Temnodontosaurus Eurhinosaurus Plesiosaur s, placodont s, and nothosaur s Ceresiosaurus Claudiosaurus Cryptocleidus Elasmosaurus Henodus Nothosaurus Placodus Placochelys Kronosaurus ... more details
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