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Taxonomy
Trachycardium (Mexicardia) was named by Stewart (1930). It is extant. Its type is Cardium procerum.
It was Cardium (Mexicardia) by Pilsbry and Olsson (1941); it was reranked as Mexicardia by Sepkoski (2002).
It was assigned to Cardium by Pilsbry and Olsson (1941); to Trachycardium by Stewart (1930), Woodring (1982), Vokes (1989); and to Veneroida by Sepkoski (2002).
It was Cardium (Mexicardia) by Pilsbry and Olsson (1941); it was reranked as Mexicardia by Sepkoski (2002).
It was assigned to Cardium by Pilsbry and Olsson (1941); to Trachycardium by Stewart (1930), Woodring (1982), Vokes (1989); and to Veneroida by Sepkoski (2002).
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, Trachycardium bonellii, Trachycardium carolinensis, Trachycardium coxi, Trachycardium declive, Trachycardium denticostulatum, Trachycardium domeykoanum, Trachycardium dominicense, Trachycardium dominicense, Trachycardium efaulense, Trachycardium emmonsi, Trachycardium eufaulense, Trachycardium evergladensis, Trachycardium flexicostatum, Trachycardium floridanum, Trachycardium gigas, Trachycardium granconense, Trachycardium heinzelini, Trachycardium kansasense, Trachycardium kinsimarae, Trachycardium lingualionis, Trachycardium longstreeti, Trachycardium magnum, Trachycardium multicostatum, Trachycardium muricata, Trachycardium niasense, Trachycardium oedalium, Trachycardium ouachitense, Trachycardium paraense, Trachycardium picteti, Trachycardium plectopleura, Trachycardium procerum, Trachycardium pseudogigas, Trachycardium pseudomagnum, Trachycardium quadragenerium, Trachycardium sanctidavidis, Trachycardium sindense, Trachycardium sindensis, Trachycardium sokkohense, Trachycardium spolongense, Trachycardium striatum, Trachycardium striatum, Trachycardium tenuistriatum, Trachycardium ustri, Trachycardium vaughani, Trachycardium waylandi, Trachycardium yokoyamai
Synonymy list
| Year | Name and author |
|---|---|
| 1930 | Trachycardium (Mexicardia) Stewart p. 263 |
| 1941 | Cardium (Mexicardia) Pilsbry and Olsson p. 9 |
| 1982 | Trachycardium (Mexicardia) Woodring p. 640 |
| 1989 | Trachycardium (Mexicardia) Vokes p. 109 |
| 2002 | Mexicardia Sepkoski |
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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.
Subg. Trachycardium (Mexicardia) Stewart 1930
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Mexicardia procera Sowerby 1833 [slender cockle]
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Invalid names: Cardium panamense Sowerby I 1833 [synonym]
†Trachycardium (Mexicardia) dominicanum Dall 1900
†Trachycardium (Mexicardia) dominicanum costaricanum Olsson 1922
Diagnosis
No diagnoses are available