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Stenasteridae
Taxonomy
Stenasteridae was named by Schuchert (1914). It is not extant. Its type is Stenaster. It is the type family of Stenasteracea. It was considered monophyletic by Dean Shackleton (2005).
It was assigned to Stenasteracea by Schuchert (1915); to Asterozoa by Spencer (1927); to Eophiuricae by Spencer (1951), Owen (1965); to Parophiurina by Spencer and Wright (1966); and to Ophiuroidea by Dean Shackleton (2005), Blake et al. (2016).
It was assigned to Stenasteracea by Schuchert (1915); to Asterozoa by Spencer (1927); to Eophiuricae by Spencer (1951), Owen (1965); to Parophiurina by Spencer and Wright (1966); and to Ophiuroidea by Dean Shackleton (2005), Blake et al. (2016).
Subtaxa
Aulactis, Stenaster (syn. Tetraster) (type genus)
Synonymy list
| Year | Name and author |
|---|---|
| 1914 | Stenasteridae Schuchert |
| 1915 | Stenasteridae Schuchert p. 163 |
| 1927 | Stenasteridae Spencer pp. 343-344 |
| 1951 | Stenasteridae Spencer p. 114 |
| 1965 | Stenasteridae Owen p. 545 |
| 1966 | Stenasteridae Spencer and Wright p. U82 |
| 2005 | Stenasteridae Dean Shackleton p. 80 |
| 2016 | Stenasteridae Blake et al. p. 176 |
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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.
Fm. †Stenasteridae Schuchert 1914
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G. †Stenaster Billings 1858
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†Stenaster confluens Trautschold 1879
†Stenaster obtusus Forbes 1848
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Invalid names: Hudsonaster batheri Schuchert 1915 [synonym], Stenaster salteri Billings 1858 [synonym], Tetraster wyvillethomsoni Nicholson and Etheridge 1880 [synonym]
Invalid names: Tetraster Nicholson and Etheridge 1880 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. K. Spencer 1951 | Lateralia broad, each carrying several rows of spines | |
| J. Dean Shackleton 2005 | Ambulacral proximal podial flange with tongue overlapping proximal flange; ambulacral aboral surface with prominent aboral process; pronounced groove between opposing ambulacrals veiwed aborally; loss of madreporite; aboral plate rod-like; tubercles on aboral plating single; loss of calcified convex interadial disc; first podial pore shared between mouth angle plate and circumoral. |