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Palaeura
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), Spencer and Wright (1966); to Stenurida by Sepkoski (2002); and to Eophiuridae by Dean Shackleton (2005).
It was assigned to Protasteridae by Schuchert (1915); to Palaeuridae by Spencer (1951), Owen (1965), Spencer and Wright (1966); to Stenurida by Sepkoski (2002); and to Eophiuridae by Dean Shackleton (2005).
Species
P. neglecta (type species)
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1903 | Palaeura Jaekel pp. 109-110 |
| 1915 | Palaeura Schuchert pp. 223-224 |
| 1951 | Palaeura Spencer p. 111 |
| 1965 | Palaeura Owen p. 548 |
| 1966 | Palaeura Spencer and Wright p. U82 |
| 2002 | Palaeura Sepkoski |
| 2005 | Palaeura Dean Shackleton p. 77 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. K. Spencer 1951 | A stenurid of the family Palaeuridae with a well-Placed skeleton and with ambulacral basins seated almost entirely on one ambulacral. | |
| J. Dean Shackleton 2005 | Proximal 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. |
Measurements
No measurements are available
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| Source: g = genus, p = phylum | |||||
| References: Spencer and Wright 1966, Aberhan 1992 | |||||