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Hexanchiformes
Order of sharks / From Wikipedia, the free encyclopedia
The Hexanchiformes /hɛkˈsæŋkɪfɔːrmiːz/ are a primitive order of sharks,[lower-alpha 1] numbering just seven extant species in two families. Fossil sharks that were apparently very similar to modern sevengill species are known from Jurassic specimens.[2]
Quick Facts Scientific classification, Families ...
Hexanchiformes | |
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Broadnose sevengill shark (Notorynchus cepedianus) | |
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Frilled shark (Chlamydoselachus anguineus) | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Subclass: | Elasmobranchii |
Clade: | Neoselachii |
Subdivision: | Selachimorpha |
Superorder: | Squalomorphii |
Order: | Hexanchiformes F. de Buen, 1926 |
Families | |
†Paraorthacodontidae? Suborder Hexanchoidei |
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