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Parareptilia ("near-reptiles") is an extinct subclass or clade of basal sauropsids/reptiles, typically considered the sister taxon to Eureptilia (the group that likely contains all living reptiles and birds). Parareptiles first arose near the end of the Carboniferous period and achieved their highest diversity during the Permian period. Several ...
Acleistorhinus (ah-kles-toe-RYE-nuss) is an extinct genus of parareptile known from the Early Permian (middle Kungurian stage) of Oklahoma. [1] It is notable for being the earliest known anapsid reptile yet discovered.
Carbonodraco is the oldest known parareptile, and is slightly older than Erpetonyx, the previously oldest known parareptile. Specimens of Carbonodraco are limited to skull and jaw fragments found at the Ohio Diamond Coal mine in Linton, Ohio.
However, Hylonomus, the oldest eureptile known from fossil evidence, lived millions of years before parareptiles appeared in the fossil record. The discovery of Erpetonyx helped to shorten this gap between parareptile and eureptile fossils, as Erpetonyx lived in the Late Carboniferous and is one of the oldest known parareptiles (though ...
Microleter teeth in cross-section, showing loosely folded plicidentine. Based on the skull's large orbits (eye holes) and weak sutures, the specimen was likely a juvenile. . Most of the skull bones were externally textured by radiating pits and furrows, with both sparse large pits and numerous tiny pits as in basal lanthanosuch
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A new record for smallest dino eggs ever discovered. The most complete egg, which also happens to be the smallest, measures about 29 millimeters (about 1.14 inches), according to China University ...
Many fossils of the type species, N. acudens, were found well preserved near the Mezen River of European Russia in various stages of growth. The dentition identified that Nyctiphruretus is a herbivore. Based on the large numbers of individuals found and the sediment that they were found in, it appears that their diet consisted of aquatic plants ...