Fine Art

Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Infraclassis: Euselachii
Division/Cohort: Neoselachii
Subdivision/Subcohort: Selachimorpha
Superordo: Squalomorphii
Ordo: Hexanchiformes

Familia: Chlamydoselachidae
Genus: Chlamydoselachus
Species (10): C. africana – C. anguineus – †C. brancheri – †C. fiedleri – †C. goliath – †C. gracilis – †C. keyesi – †C. landinii – †C. lawleyi – †C. thomsoni – †C. tobleri
Name

Chlamydoselachus Garman, 1884: 52
Gender: masculine
Type species: Chlamydoselachus anguineus Garman, 1884
Fixation: monotypy

References

Ebert, D.A. & Compagno, L.C. 2009. Chlamydoselachus africana, a new species of frilled shark from southern Africa (Chondrichthyes, Hexanchiformes, Chlamydoselachidae). Zootaxa 2173: 1–18. Abstract & excerpt DOI: 10.11646/zootaxa.2173.1.1 ResearchGate Open access. Reference page. Abstract & excerpt
Garman, S. 1884: An extraordinary shark. Bulletin of the Essex Institute, 16: 47–55. BHL

Links

English:
Chlamydoselachus africana
italiano:
Chlamydoselachus lawleyi
Chlamydoselachus – Taxon details on World Register of Marine Species (WoRMS).

Vernacular names
Deutsch: Kragenhaie
English: Frilled Sharks
日本語: ラブカ属
Nederlands: Franjehaaien

Chlamydoselachus is a genus of sharks and the sole extant member of the family Chlamydoselachidae, in the order Hexanchiformes. It contains two extant and four extinct species. The most widely known species still surviving is the frilled shark (Chlamydoselachus anguineus). It is known as a living fossil, along with Chlamydoselachus africana, also known as the southern African frilled shark, which is only found along coastal areas of South Africa. The only two extant species of this genus are deep-sea creatures which are typically weakened in areas closer to the surface. While the two extant species are similar in external appearance, they differ internally.[2]

The earliest known fossil members of the genus are C. gracilis from Angola and C. balli from Canada, both from the Campanian stage of the Late Cretaceous. Formations with fossil Chlamydoselachus teeth are thought to be composed of deep-sea sediments, indicating that they have long inhabited deep-sea environments. Fossil Chlamydoselachus teeth closely resemble those of modern members.[3]
Species

Chlamydoselachus africana Ebert & Compagno, 2009 (southern African frilled shark)
Chlamydoselachus anguineus Garman, 1884 (frilled shark)
†Chlamydoselachus balli Cappetta, Morrison & Adnet, 2019
†Chlamydoselachus garmani Welton, 1983
†Chlamydoselachus gracilis Antunes & Cappetta, 2002
†Chlamydoselachus lawleyi Davis, 1887
†Chlamydoselachus tobleri Leriche, 1929

Tooth of the extinct C. lawleyi from Italy

Many other species formerly described in this genus were moved to the fossil genus Rolfodon in 2019. Chlamydoselachus and Rolfodon can be distinguished from one another by their tooth morphologies. Rolfodon also survived the Cretaceous-Paleogene extinction event but went extinct during the Miocene.[3]

iconSharks portal

References

Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology. 364: 560. Retrieved 2013-01-17.
Compagno, Leonard J. V.; Dando, Marc; Fowler, Sarah L.; Compagno, Leonard; Fowler, Sarah (2005). A field guide to the Sharks of the world. Collins field guide. London: Collins. ISBN 978-0-00-713610-0.
Cappetta, Henri; Morrison, Kurt; Adnet, Sylvain (2019-12-10). "A shark fauna from the Campanian of Hornby Island, British Columbia, Canada: an insight into the diversity of Cretaceous deep-water assemblages". Historical Biology. 33 (8): 1121–1182. doi:10.1080/08912963.2019.1681421. ISSN 0891-2963. S2CID 212878837.

Fish Images

Biology Encyclopedia

Retrieved from "http://en.wikipedia.org/"
All text is available under the terms of the GNU Free Documentation License

Home - Hellenica World