WebbThe early white shark Carcharodon Smith, 1838 with the fossil Carcharodon auriculatus (Blainville, 1818) and the extinct megatooth shark Otodus Agassiz, 1843 with species Otodus sokolovi (Jaeckel, 1895) were both present in the European proto North Sea Basin about 47.8 - 41.3 m.y. ago (Lutetian, early Middle Eocene), as well as in the Tethys realm … http://www.prehistoric-wildlife.com/articles/prehistoric-sharks-through-the-ages.html
Giant, swimming mouths: Oral dimensions of extant sharks do not ...
WebbThe goblin shark ( Mitsukurina owstoni) is a rare species of deep-sea shark. Sometimes called a "living fossil", it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old. This pink-skinned animal has a distinctive profile with an elongated, flat snout, and highly protrusible jaws containing ... WebbSharks are much older than dinosaurs. Their ancestry dates back more than 400 million years, and they are one of evolution’s greatest success stories. These animals are … great moose real estate chris griffith
Common Ancestor of Sharks and Humans Lived 440 …
WebbShark evolution. Evidence for the existence of sharks extends back over 450-420 million years, into the Ordovician period, before land vertebrates existed and before many plants had colonised the continents. All that has been recovered from the first sharks are some scales. The oldest shark teeth are from 400 million years ago. WebbShark ancestors did have bones, but these evolved to become cartilage, which made sharks lighter and more buoyant. Scales, called denticles, cover sharks’ skin and help … WebbThe massive Megalodon is an ancestor of today's infamous White Shark. Sharks have always dominated the top of the marine food chain. For a brief time they were joined by other huge marine reptiles, such as Mosasaurs and Plesiosaurs. Yet sharks are the only group to have survived to modern day. great morel website