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Pentedium
Taxonomy
Pentedium is a genus. It is not extant.
It was assigned to Laganina by Kier (1968); and to Clypeasteroida by Sepkoski (2002).
It was assigned to Laganina by Kier (1968); and to Clypeasteroida by Sepkoski (2002).
Species
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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.
Diagnosis
No diagnoses are available