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Life restorations of a Mammut americanum, or American mastodon (right), and a Mammuthus primigenius, or wooly mammoth (left) †Mammuthus primigenius †Margaritaria; Marginella; Marmota †Marmota monax; Masticophis †Masticophis flagellum; Megaceryle †Megaceryle alcyon; Mounted fossilized skeleton of the Miocene-Pleistocene ground sloth ...
This list of the Paleozoic life of Virginia contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Virginia and are between 538.8 and 252.17 million years of age.
Therizinosauridae (meaning 'scythe lizards') [1] is an extinct family of derived (advanced) therizinosauroid dinosaurs whose fossil remains have been found in mostly Late Cretaceous boundary.
A diverse fish community swam in what is now Virginia during the Early Jurassic. The best represented among the well-preserved fossils they left behind were semionotids. Other kinds of fish present in Early Jurassic Virginia included coelacanths and palaeoniscids. Their fossils were buried in a deposit now called the Midland Fish Bed. [9]
A = Anapsid, B = Synapsid, C = Diapsid. It was traditionally assumed that first reptiles were anapsids, having a solid skull with holes only for the nose, eyes, spinal cord, etc.; [10] the discoveries of synapsid-like openings in the skull roof of the skulls of several members of Parareptilia, including lanthanosuchoids, millerettids, bolosaurids, some nycteroleterids, some procolophonoids and ...
Tyrannosauridae (or tyrannosaurids, meaning "tyrant lizards") is a family of coelurosaurian theropod dinosaurs that comprises two subfamilies containing up to fifteen genera, including the eponymous Tyrannosaurus. The exact number of genera is controversial, with some experts recognizing as few as three.
Researchers found that chimps are fond of soaking palm wine in their mouths using leaves, ... #47 Birds Are Descended From Dinosaurs. When we think of dinosaurs, we often think of large, reptile ...
Although some diapsids have lost either one hole (lizards), or both holes (snakes and turtles), or have a heavily restructured skull (modern birds), they are still classified as diapsids based on their ancestry. At least 17,084 species of diapsid animals are extant: 9,159 birds, [3] and 7,925 snakes, lizards, tuatara, turtles, and crocodiles. [4]