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Gryphaea (Bilobissa)
Taxonomy
Bilobissa was named as a genus. It is not extant.
It was reranked as Gryphaea (Bilobissa) by Gahr (2002).
It was assigned to Gryphaea by Gahr (2002); and to Pterioida by Sepkoski (2002).
It was reranked as Gryphaea (Bilobissa) by Gahr (2002).
It was assigned to Gryphaea by Gahr (2002); and to Pterioida by Sepkoski (2002).
Subtaxa
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.
Diagnosis
No diagnoses are available