Back Hexanchiformes AF خانقات Arabic خانقات ARZ Hexanchiformes AST Çoxqəlsəməlikimilər AZ Многохрилообразни акули Bulgarian Hexanquiformes Catalan Hexanchiformes CEB Šedouni Czech Hexanchiformes German
| Hexanchiformes | |
|---|---|
| |
| Frilled shark, (Chlamydoselachus anguineus) | |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Infraclass: | Euselachii |
| Clade: | Neoselachii |
| Superorder: | Squalomorphii |
| Order: | Hexanchiformes F. de Buen, 1926 |
| Families | |
|
†Crassodontidanidae | |
The Hexanchiformes /hɛkˈsæŋkɪfɔːrmiːz/ are the order consisting of the most primitive types of sharks,[a] and numbering just seven extant species. Fossil sharks that were apparently very similar to modern sevengill species are known from Jurassic specimens.[2]
- ^ Froese, Rainer, and Daniel Pauly, eds. (2009). "Hexanchiformes" in FishBase. January 2009 version.
- ^ Allen, Thomas B. (1999). The Shark Almanac. New York: The Lyons Press. p. 45. ISBN 1-55821-582-4.
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