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Oegophiuroida (disused)
Taxonomy
Oegophiuroida was named by Matsumoto (1915). It is extant.
It was reranked as the suborder Oegophiurina by Lehmann (1957) and Owen (1965).
It was assigned to Ophiuroidea by Matsumoto (1915); and to Ophiurida by Lehmann (1957) and Owen (1965).
It was reranked as the suborder Oegophiurina by Lehmann (1957) and Owen (1965).
It was assigned to Ophiuroidea by Matsumoto (1915); and to Ophiurida by Lehmann (1957) and Owen (1965).
Synonymy list
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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.
Subcl. Oegophiuroida Matsumoto 1915
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. Matsumoto 1915 | Ophiuroidea with external ambulacral grooves, and without ventral arm plates. Radial shields, genital plates and scales, oral shields and dorsal arm plates also absent. Ambulacral plates alternate or opposite; in the latter case, they may often be soldered in pairs to form the vertebrse. Adambulacral plates, i.e., lateral arm plates, subventral. Madreporite either dorsal or ventral, often large and similar in shape to that of an Asteroid. |