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Opertochasma
Taxonomy
Opertochasma was named by Stephenson (1953) [Sepkoski's age data: J Kimm K Maes Sepkoski's reference number: 803,914]. It is not extant.
It was assigned to Pholadidae by Vokes (1980); and to Myoida by Sepkoski (2002).
It was assigned to Pholadidae by Vokes (1980); and to Myoida 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. †Opertochasma Stephenson 1953
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Diagnosis
No diagnoses are available