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Pteraster
Taxonomy
Pteraster was named by Müller and Troschel (1842). It is extant.
It was assigned to Pterasteridae by Perrier (1875), Spencer and Wright (1966), Gale (2022) and Gale (2023).
It was assigned to Pterasteridae by Perrier (1875), Spencer and Wright (1966), Gale (2022) and Gale (2023).
Synonymy list
Year | Name and author |
---|---|
1842 | Pteraster Müller and Troschel |
1875 | Pteraster Perrier |
1966 | Pteraster Spencer and Wright p. U68 |
2022 | Pteraster Gale p. 6 |
2023 | Pteraster Gale p. 109 |
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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. Pteraster Müller and Troschel 1842
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†Pteraster angulatus Gale 2022
†Pteraster balticus Gale 2022
†Pteraster cretachiton Gale 2022
†Pteraster kutscheri Gale 2022
†Pteraster lyddenensis Gale 2023
†Pteraster nudus Gale 2022
†Pteraster paucispinus Gale 2022
†Pteraster seafordensis Gale 2022
†Pteraster turoniense Gale 2022
Diagnosis
Reference | Diagnosis | |
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A.S. Gale 2022 | Pterasterids of a thick, cushion-like form, pentagonal to stellate; actinolateral membrane usually narrow or at least not projecting much beyond ambitus; adambulacral spines webbed in transverse series; tube feet in two rows |
Measurements
No measurements are available
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Source: f = family, o = order, c = class, p = phylum | |||||
References: Aberhan 1992, Blake 1990, Aberhan et al. 2004 |
Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Late/Upper Campanian | Belgium (Liege) | P. sp. (32150) | |
Early/Lower Maastrichtian | Germany (Mecklenburg-Vorpommern) | P. sp. (32022) |