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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
Cardium anclotense, Cardium brooksvillense, Cardium coutinhoi, Cardium delphicum, Cardium hernandoense, Cardium hortensium, Cardium inconspicuum, Cardium laddi, Cardium leucostomum, Cardium malacum, Cardium oedalium, Cardium oedalium, Cardium paraense, Cardium peruvianum, Cardium plectopleura, Cardium silicatum, Cardium stiriatum, Cardium striatum, Cardium ustrix, Cardium viridarii, Cardium virile, Cardium waylandi, Cardium zorritense, Cardium zorritoensis, Carduim fraternum, Laevicardium gigas, Pleuriocardia eufaulensis huntanum, Pleuriocardia huntanum, Pleurocardia longstreeti, Pleurocardia tinninense, T. bonellii, T. carolinensis, T. coxi, T. declive, T. denticostulatum, T. domeykoanum, T. efaulense, T. emmonsi, T. eufaulense, T. floridanum, T. granconense, T. heinzelini, T. kansasense, T. kinsimarae, T. longstreeti, T. magnum, T. multicostatum, T. niasense, T. oedalium, T. ouachitense, T. paraense, T. picteti, T. plectopleura, T. procerum, T. pseudogigas, T. pseudomagnum, T. quadragenerium, T. sindense, T. sindensis, T. sokkohense, T. spolongense, T. tenuistriatum, T. ustri, T. vaughani, T. waylandi, T. yokoyamai, T. gigas, T. dominicense, T. dominicense, T. muricata, T. sanctidavidis, T. striatum, T. striatum, T. evergladensis, T. flexicostatum, T. lingualionis
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