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Oreaster
Taxonomy
Oreaster was named by Müller and Troschel (1842). It is extant. It is the type genus of Oreasteridae.
It was reranked as Pentaceros (Oreaster) by von Zittel (1876).
It was assigned to Pentaceros by von Zittel (1876); and to Oreasteridae by Fisher (1911) and Spencer and Wright (1966).
It was reranked as Pentaceros (Oreaster) by von Zittel (1876).
It was assigned to Pentaceros by von Zittel (1876); and to Oreasteridae by Fisher (1911) and Spencer and Wright (1966).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1840 | Pentaceros Gray p. 276 |
| 1842 | Oreaster Müller and Troschel |
| 1876 | Pentaceros (Oreaster) von Zittel |
| 1909 | Astropecten (Pentaceros) von Linstow p. 52 |
| 1911 | Oreaster Fisher |
| 1915 | Pentaceros Clark and Twitchell p. 42 |
| 1966 | Oreaster Spencer and Wright p. U63 |
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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.
G. Oreaster Müller and Troschel 1842
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†Oreaster squamosus Forbes 1848
Invalid names: Pentaceros Gray 1840 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Blake 1990, Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Early/Lower Tithonian or 150.80000 to 145.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Tithonian | Germany (Baden-Wurttemberg) | Pentaceros stelliferus (23887) |