Sharks (superorder Selachimorpha) are a type of fish with a full cartilaginous skeleton and a highly streamlined body. The earliest known sharks date from more than 420 million years ago.
Since that time, sharks have diversified into 440 species, ranging in size from the small dwarf lanternshark, Etmopterus perryi, a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark, Rhincodon typus, the largest fish, which reaches ap...
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Scientific name:
- Selachimorpha
Rank:
Lower classifications:
- Carpet shark ,
- Carcharhiniformes ,
- Lamniformes ,
- Hexanchiformes ,
- Heterodontiformes ,
- Squatiniformes ,
- Squaliformes
Also known as:
- Selachimorpha
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