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Pterasteridae
Taxonomy
Pterasteridae was named by Perrier (1875). It is extant. It was considered monophyletic by Gale (1987) and Gale (2018).
It was reranked as the unranked clade Pterasteridae by Gale (2018).
It was assigned to Eugnathina by Spencer and Wright (1966); to Valvatida by Gale (1987); to Spinulosida by Gale (2011); to Velatida by Gale (2011) and Gale (2018); and to Velatida by Perrier (1894), Blake (1989), Mah and Blake (2012), Gale (2022) and Gale (2023).
It was reranked as the unranked clade Pterasteridae by Gale (2018).
It was assigned to Eugnathina by Spencer and Wright (1966); to Valvatida by Gale (1987); to Spinulosida by Gale (2011); to Velatida by Gale (2011) and Gale (2018); and to Velatida by Perrier (1894), Blake (1989), Mah and Blake (2012), Gale (2022) and Gale (2023).
Subtaxa
Synonymy list
Year | Name and author |
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1875 | Pterasteridae Perrier pp. 17, 38 |
1894 | Pterasteridae Perrier p. 180 |
1966 | Pterasteridae Spencer and Wright p. U68 |
1987 | Pterasteridae Gale p. 125 |
1989 | Pterasteridae Blake p. 213 |
2011 | Pterasteridae Gale p. 82 |
2012 | Pterasteridae Mah and Blake p. 3 |
2018 | Pterasteridae Gale p. 299 |
2022 | Pterasteridae Gale p. 6 |
2023 | Pterasteridae 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.
Unr. Pterasteridae Perrier 1875
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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
G. †Savignaster Gale 2011
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†Savignaster septemtrionalis Rousseau et al. 2018
†Savignaster wardi Gale 2011
Diagnosis
Reference | Diagnosis | |
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A.S. Gale 2018 | Velatida in which the primary radial ossicles carry a vase-shaped pedicel. Muscles are present between abactinals and abactinal-chevron ossicle contacts. |
Measurements
No measurements are available
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Source: f = family, o = order, c = class, p = phylum | |||||
References: Aberhan et al. 2004, Aberhan 1992, Blake 1990 |
Age range
Maximum range based only on fossils: base of the Late/Upper Oxfordian to the top of the Early/Lower Maastrichtian or 161.20000 to 66.00000 Ma
Minimum age of oldest fossil (stem group age): 155.7 Ma
Minimum age of oldest fossil (stem group age): 155.7 Ma
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Oxfordian | France | Savignaster wardi (61724) | |
Late/Upper Campanian | Belgium (Liege) | Pteraster sp. (32150) | |
Early/Lower Maastrichtian | Germany (Mecklenburg-Vorpommern) | Pteraster sp. (32022) |