Today there are 6,800 reptile species on earth; the major groups are alligators and crocodiles, turtles, lizards, and snakes. Reptiles are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane. Today they are represented by four surviving … Read More
Scientific classification Kingdom: Animalia Phylum: Chordata Class: Sauropsida Order: Squamata Family: Mosasauridae Subfamily: Mosasaurinae Mosasaurinae (Gervais, 1853; Williston, 1897) is a subfamily of mosasaurs, a diverse group of Late Cretaceous marine squamates. Russell (1967, pp. 123-124) defined the Mosasurinae as … Read More
Scientific classification Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Sauropsida – Goodrich, 1916 Orders: Procolophonia (extinct) Testudines Araeoscelidia (extinct) Avicephala (extinct) Younginiformes (extinct) Sauropterygia Ichthyosauria (extinct) Placodontia (extinct) Nothosauria (extinct) Plesiosauria (extinct) Sphenodontia Squamata Prolacertiformes (extinct) Archosauria Crurotarsi Order Aetosauria … Read More
