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Firmacidaris
Taxonomy
Firmacidaris is a genus. It is not extant.
It was considered a nomen dubium by Fell and Pawson (1966).
It was assigned to Stylocidarinae by Nisiyama (1966); and to Echinoidea by Sepkoski (2002).
It was considered a nomen dubium by Fell and Pawson (1966).
It was assigned to Stylocidarinae by Nisiyama (1966); and to Echinoidea 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