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Eophiura

Stenuroidea - Eophiuridae

Taxonomy
Eophiura was named by Jaekel (1903) [Sepkoski's age data: O Aren-u]. It is not extant. Its type is Eophiura bohemica. It was considered monophyletic by Dean Shackleton (2005).

It was assigned to Protasteridae by Schuchert (1915); to Stenurida by Sepkoski (2002); and to Eophiuridae by Spencer (1951), Owen (1965), Spencer and Wright (1966), Dean Shackleton (2005) and Blake (2013).

Synonymy list
YearName and author
1903Eophiura Jaekel p. 107
1915Eophiura Schuchert p. 222
1951Eophiura Spencer pp. 111, 113
1965Eophiura Owen p. 546
1966Eophiura Spencer and Wright p. U82
2002Eophiura Sepkoski, Jr.
2005Eophiura Dean Shackleton p. 79
2013Eophiura Blake p. 367

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumAsterozoa
classStenuroidea()
suborderProturina
familyEophiuridae
genusEophiura

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
W. K. Spencer 1951A stenurid of the family Eophiuridae with well-plated disk with small overlapping scales, spines set parallel to the arm's length. Ambulacral basins shared subequally by two ambulacralia. Ambulacral axis broad and stiff. Paired mouth-angle plates broadly notched proximally
J. Dean Shackleton 2005Inferomarginal ossicles alternate bettween small and large size; additional spine-bearing ossicle in jaw causing mouth angle plate to be L-shaped.