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Plesiastropecten
Taxonomy
Plesiastropecten was named by Peyer (1944) [Sepkoski's age data: J Hett-u]. It is not extant. Its type is Plesiastropecten hallovensis.
It was assigned to Astropectininae by Spencer and Wright (1966); to Paleobenthopectininae by Blake (1984); to Paxillosida by Sepkoski (2002); to Notomyotida by Sepkoski (2002); to Velatida by Villier et al. (2009); and to Plumasteridae by Gale and Jagt (2021).
It was assigned to Astropectininae by Spencer and Wright (1966); to Paleobenthopectininae by Blake (1984); to Paxillosida by Sepkoski (2002); to Notomyotida by Sepkoski (2002); to Velatida by Villier et al. (2009); and to Plumasteridae by Gale and Jagt (2021).
Species
P. hallovensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1944 | Plesiastropecten Peyer |
| 1966 | Plesiastropecten Spencer and Wright p. U46 |
| 1984 | Plesiastropecten Blake p. 633 |
| 2002 | Plesiastropecten Sepkoski |
| 2002 | Plesioastropecten Sepkoski |
| 2009 | Plesiastropecten Villier et al. p. 396 |
| 2021 | Plesiastropecten Gale and Jagt p. 178 |
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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 | |
|---|---|---|
| A.S. Gale and J.W.M. Jagt 2021 | Five-rayed plumasterid, in which the abactinal ossicles are stellate and which bears a fringe of elongated marginal spines. |