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Periaster
Taxonomy
Periaster is a genus. It is not extant.
It was assigned to Hemiasteridae by Grant and Hertlein (1938); and to Spatangoida by Sepkoski (2002).
It was assigned to Hemiasteridae by Grant and Hertlein (1938); and to Spatangoida by Sepkoski (2002).
Synonymy list
Year | Name and author |
---|---|
1938 | Periaster Grant and Hertlein p. 123 |
2002 | Periaster Sepkoski |
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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. †Periaster
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Diagnosis
No diagnoses are available