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Taxonomy
Yokoyamaina was named by Hayami (1958) [Sepkoski's age data: J Hett]. It is not extant. Its type is Cyrena elliptica.
It was reranked as Integricardium (Yokoyamaina) by Hayami (1972).
It was assigned to Integricardium by Hayami (1972); to Lahilliinae by Schneider (1995); and to Veneroida by Sepkoski (2002).
It was reranked as Integricardium (Yokoyamaina) by Hayami (1972).
It was assigned to Integricardium by Hayami (1972); to Lahilliinae by Schneider (1995); and to Veneroida by Sepkoski (2002).
Species
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. †Yokoyamaina Hayami 1958
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†Yokoyamaina elliptica Yokoyama 1904
†Yokoyamaina globosa Hayami 1972
†Yokoyamaina hayamii Keen 1969
Diagnosis
No diagnoses are available