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List_of_sharks

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List_of_sharks
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List of sharks

Shark classification

Please follow this link to the correct article: Template:TOC left Sharks belong to the superorder Selachimorpha in the subclass Elasmobranchii in the class Chondrichthyes. It is a fish. The Elasmobranchii also include rays and skates; the Chondrichthyes also include Chimaeras. It is currently thought that the sharks form a polyphyletic group: in particular, some sharks are more closely related to rays than they are to some other sharks. The first sharks appeared in the oceans 350 to 400 million years ago. Most of the species we know today are as old as the Jurassic period.

Listed below are extant species of shark in taxonomic order. Sharks are spread across eight orders which are listed in roughly evolutionary order (from primitive to modern), and the families and genera within the orders are listed in alphabetical order.

  • Pristiophoriformes: These are the sawsharks, with an elongated, toothed snout that they use for slashing the fishes that they subsequently eat.

Taxonomic listing

  • Family Hexanchidae (Cow sharks, sevengill sharks, and sixgill sharks)
  • Family Heterodontidae (Bullhead sharks, horn sharks, and port jackson sharks)
  • Family Sphyrnidae (Bonnethead sharks, hammerhead sharks, and scoophead sharks)
  • Family Triakidae (Houndsharks, smooth-hounds, topes, and whiskery sharks)
  • Family Lamnidae (Mackerel sharks, porbeagles, and white sharks)

See also

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "List_of_sharks". The list of authors you can find on this page.

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