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Taxonomy
Cardium ishigakensis was named by MacNeil (1964) [DISTRIBUTION: Eocene; North-Central Pacific.]. It is not a trace fossil.
It was recombined as Plagiocardium ishigakensis by Masuda and Noda (1976).
It was recombined as Plagiocardium ishigakensis by Masuda and Noda (1976).
Synonymy list
Year | Name and author |
---|---|
1964 | Cardium ishigakensis MacNeil p. 9 figs. pl. 3, figs. 8, 9 |
1976 | Plagiocardium ishigakensis Masuda and Noda |
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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.
†Plagiocardium ishigakensis MacNeil 1964
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Diagnosis
No diagnoses are available