Hexanchus: Difference between revisions
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| name = ''Hexanchus'' |
| name = ''Hexanchus'' |
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| fossil_range = {{Fossil range|196|0}} [[Sinemurian]] to present<ref>{{cite journal |
| fossil_range = {{Fossil range|196|0}} [[Sinemurian]] to present<ref>{{cite journal |
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|last=Sepkoski |
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|first=Jack |
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|authorlink= |
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|coauthors= |
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|title=A compendium of fossil marine animal genera (Chondrichthyes entry) |
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|journal=Bulletins of American Paleontology |
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|volume=364 |
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|issue= |
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|page=560 |
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|year=2002 |
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|url=http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=575&rank=class |
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|doi= |
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|id= |
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|accessdate=2008-01-09 |
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|deadurl=yes |
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|archiveurl=https://web.archive.org/web/20110930154826/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=575&rank=class |
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|archivedate=2011-09-30 |
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|df= |
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}}</ref> |
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| image = Hexanchus griseus (Bluntnose sixgill shark).gif |
| image = Hexanchus griseus (Bluntnose sixgill shark).gif |
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| image_caption = [[Bluntnose sixgill shark]]<br />(''[[Bluntnose sixgill shark|Hexanchus griseus]]'') |
| image_caption = [[Bluntnose sixgill shark]]<br />(''[[Bluntnose sixgill shark|Hexanchus griseus]]'') |
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Revision as of 22:32, 1 April 2017
| Hexanchus Temporal range: Sinemurian to present[1]
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.gif?lang=en)
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| Bluntnose sixgill shark (Hexanchus griseus) | |
| Scientific classification | |
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| Genus: | Hexanchus Rafinesque, 1810
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| Species | |
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See text. | |
The sixgill sharks are a genus, Hexanchus, of deepwater sharks in the family Hexanchidae. These sharks are characterized by a broad, pointed head, six pairs of gill slits, comb-like, yellow lower teeth, and a long tail. It can grow up to 8 m long and weigh over 600 kg (1320 lb).[2] They are abyssal plain scavengers with a keen sense of smell and are among the first to arrive at carrion, together with hagfish and rattails. They show a characteristic rolling motion of the head when feeding. They have been found at depths to 2,500 ft (760 m).[citation needed]
Extant species
- Hexanchus griseus Bonnaterre, 1788 (bluntnose sixgill shark)
- Hexanchus nakamurai Teng, 1962 (bigeyed sixgill shark)
Extinct species
- Hexanchus agassizi Cappetta, 1976
- Hexanchus andersoni Jordan, 1907
- Hexanchus casieri Kozlov, 1999
- Hexanchus collinsonae Ward, 1979
- Hexanchus gracilis Davis, 1887
- Hexanchus hookeri Ward, 1979
- Hexanchus microdon Agassiz, 1843
- Hexanchus tusbairicus Kozlov in Zhelezko & Kozlov, 1999
See also
References
- ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology. 364: 560. Archived from the original on 2011-09-30. Retrieved 2008-01-09.
{{cite journal}}: Cite has empty unknown parameter:|coauthors=(help); Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ Kindersley, Dorling (2001,2005). Animal. New York City: DK Publishing. ISBN 0-7894-7764-5.
{{cite book}}: Check date values in:|year=(help)CS1 maint: year (link)
- "Hexanchus". Integrated Taxonomic Information System. Retrieved 6 June 2006.
External links
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