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Nipponaster
Taxonomy
Nipponaster was named by Durham (1952) [Sepkoski's age data: T Mi T Plio-l Sepkoski's reference number: 956]. It is not extant.
It was assigned to Echinarachniidae by Durham (1966); and to Clypeasteroida by Sepkoski (2002).
It was assigned to Echinarachniidae by Durham (1966); and to Clypeasteroida by Sepkoski (2002).
Synonymy list
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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. †Nipponaster Durham 1952
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Diagnosis
No diagnoses are available