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Palaeura

Stenuroidea - Eophiuridae

Taxonomy
Palaeura was named by Jaekel (1903) [Sepkoski's age data: O Aren-u O Llvi-l]. Its type is Palaeura neglecta. It is the type genus of Palaeuridae. It was considered monophyletic by Dean Shackleton (2005).

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

Synonymy list
YearName and author
1903Palaeura Jaekel pp. 109-110
1915Palaeura Schuchert pp. 223-224
1951Palaeura Spencer p. 111
1965Palaeura Owen p. 548
1966Palaeura Spencer and Wright p. U82
2002Palaeura Sepkoski, Jr.
2005Palaeura Dean Shackleton p. 77

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

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 Palaeuridae with a well-Placed skeleton and with ambulacral basins seated almost entirely on one ambulacral.
J. Dean Shackleton 2005Proximal podial flange larger than distal; lateral branch to radial water vessel running entirely within single ambulacral ossicles; podial basin tall and square-sided; adambulacrals sickle-shaped; groove spines short square morphology; vertical spine length greater than twice adambulacral.