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Morphology Ecology and taphonomy   Age range and collections

Ophiura

Ophiuroidea - Ophiurida - Ophiuridae

Synonyms
Synonymy list
YearName and author
1801Ophiura Lamarck
1860Ophioglypha Lyman
1865Ophiura Lyman
1915Ophioglypha Clark and Twitchell p. 43
1915Ophiura Matsumoto p. 76
1939Ophiura Wolburg p. 24
1941Ophiura Berry p. 61
1957Ophiura (Ophioglypha) Barbier et al.
1966Ophiura Spencer and Wright p. U95
2002Ophiura Sepkoski, Jr.
2011Ophiura Stöhr et al. p. 115

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumAsterozoa
classOphiuroidea
orderOphiurida()
familyOphiuridae
genusOphiura

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
H. Matsumoto 1915Disk low, flat, covered with plates and scales, among which the primaries are usually very prominent,. Radial shields usually separated from each other, sometimes more or less joined in pairs. Second oral tentacle pores open nearly or entirely outside oral slits,
very large, beset with numerous scales. Genital papillae, and usually also arm combs, present. Arms low, often flattened. Dorsal arm plates usually well developed and in contact with each other. Lateral arm plates low, those of the two sides being in contact with each other below. Three or more arm spines of variable length. Tentacle pores of one or two innermost pairs large and beset with rather numerous scales, but those beyond very small and beset with a few scales.
S. Stöhr et al. 2011Disc low, flat, covered by small, imbricating plates, primary rosette usually distinct. Radial shields more or less separated. Arms not stout, gradually tapering, usually deep incisions next to arm bases (distal bursal slits). Dorsal arm plates well developed, adjacent plates usually contiguous, several proximal dorsal plates included in the disc, separating radial shields. Genital papillae well developed, arm combs present. Second oral tentacle pore opens into mouth slit, beset with numerous small papillae, which often form a continuous row with the oral papillae. Ventral arm plates much wider than long, usually separated,
at least outside disc.