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Isaster
Taxonomy
Isaster is a genus. It is not extant.
It was assigned to Toxasteridae by Fischer (1966); and to Spatangoida by Sepkoski (2002).
It was assigned to Toxasteridae by Fischer (1966); and to Spatangoida by Sepkoski (2002).
Species lacking formal opinion data
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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. †Isaster
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†Isaster aquitanicus Grateloup 1836
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Invalid names: Epiaster aquitanicus dOrbigny 1853 [synonym], Ismidaster toulai Boehm 1927 [synonym]
†Isaster benguellensis de Loriol 1888
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan 1992, Kiessling 2004 | |||||
Age range: base of the Late/Upper Albian to the top of the Danian or 106.30000 to 61.66000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Albian | Angola | I. benguellensis (210852) | |
| Danian | Austria | I. aquitanicus (47930) | |
| Danian | Türkiye | I. toulai (48062) |