Amphiura

Amphiura
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Subphylum:	Eleutherozoa
Class:	Ophiuroidea
Order:	Ophiurida
Suborder:	Gnathophiurina
Family:	Amphiuridae
Genus:	Amphiura; Forbes, 1843
Species
	see text.

Amphiura is a large genus of brittle stars (Ophiuroidea) found in oceans worldwide from tropics to Arctic and Antarctic regions.

Systematics and phylogeny[]

Amphiura is a large genus that is currently divided into the following six subgenera: Amphioplus, Amphiura, Fellaria, Ophionema, Ophiopelte and Ophiopeltis. The once used subgenus Acrocnida has been elevated to a genus rank. Fossil record of the genus date back to Turonian ().^[1]

Species[]

Extant species include:^[2]^[3]

Amphiura callida
Amphiura chiajei

Amphiura filiformis

References[]

^ Storc, The ophiuroid Amphiura? plana in nearshore settings of the Bohemian Cretaceous Basin (Czech Republic)R.Geologia Carpathica,Vol.55, No 1(2004)
^ MarineSpecies.org - Amphiura Forbes, 1843
^ Branch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. Two Oceans: a guide to the marine life of southern Africa ISBN 978-1-77007-772-0

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[1] Storc, The ophiuroid Amphiura? plana in nearshore settings of the Bohemian Cretaceous Basin (Czech Republic)R.Geologia Carpathica,Vol.55, No 1(2004)

[2] MarineSpecies.org - Amphiura Forbes, 1843

[Branch-3] Branch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. Two Oceans: a guide to the marine life of southern Africa ISBN 978-1-77007-772-0

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