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Taxonomy
Perna nishiyamai was named by Yokoyama (1911). It is a 3D body fossil. Its type locality is Manda, Miike Coal-field (625 feet depth), which is in a Lutetian marine sandstone in Japan.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1911 | Perna nishiyamai Yokoyama p. 7 figs. Pl 1, figs 1a,b |
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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.
†Perna nishiyamai Yokoyama 1911
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004 | |||||