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Taxonomy
Cardium eversum was named by Conrad (1848) [DISTRIBUTION: Early Oligocene; Gulf Coastal Plain.]. Its type specimen is ANSP 30653, a shell, and it is a 3D body fossil. Its type locality is Vicksburg, which is in a Rupelian marine marl in the Byram Marl Formation of Mississippi.
It was recombined as Cardium (Cerastoderma) eversum by Conrad (1865); it was recombined as Trachycardium eversum by Dockery (1982).
It was recombined as Cardium (Cerastoderma) eversum by Conrad (1865); it was recombined as Trachycardium eversum by Dockery (1982).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1848 | Cardium eversum Conrad p. 122 figs. pl. 12, fig. 18 |
| 1865 | Cardium (Cerastoderma) eversum Conrad p. 7 |
| 1982 | Trachycardium eversum Dockery p. 70 |
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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.
†Trachycardium eversum Conrad 1848
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Diagnosis
No diagnoses are available