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: Galeomorphii
Ordo: Carcharhiniformes
Familia: Pseudotriakidae
Genera (3): Gollum – Planonasus – Pseudotriakis
Name
Pseudotriakidae Gill, 1893
Synonyms
Golluminae
References
Compagno, L.J.V. 1988: Sharks of the order Carcharhiniformes. Princetown University Press, New Jersey.
Compagno, L.J.V. 1999: Checklist of living elasmobranchs. Pp. 471–498 in: Hamlett, W.C. (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Science Publishers, Enfield.
Compagno, L.J.V.; Dando, M.; Fowler, S. 2005: A field guide to the Sharks of the World. Harper Collins Publishing Ltd., London.
The Pseudotriakidae are a small family of ground sharks, belonging to the order Carcharhiniformes, containing the false catsharks (genera Pseudotriakis and Planonasus) and gollumsharks (genus Gollum). It contains the only ground shark species that exhibit intrauterine oophagy, in which developing fetuses are nourished by eggs produced by their mother.[1]
Undescribed species
One undescribed species is known - one in the genus Gollum, (Gollum sp. B) - the white-marked gollumshark.[2][3]
References
Froese, Rainer, and Daniel Pauly, eds. (2012). "Pseudotriakidae" in FishBase. December 2012 version.
Compagno, L.J.V.; M. Dando & S. Fowler (2005). Sharks of the World. Princeton University Press. pp. 257–260. ISBN 978-0-691-12072-0.
Weigmann, S., Stehmann, M.F.W. & Thiel, R. (2013): Planonasus parini n. g. and n. sp., a new genus and species of false cat sharks (Carchariniformes, Pseudotriakidae) from the deep northwestern Indian Ocean off Socotra Islands. Zootaxa, 3609 (2): 163–181.
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