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Taxonomy
Orthocardium was named by Tremlett (1950) [Sepkoski's age data: T Than-l T Eo-u Sepkoski's reference number: 914]. It is not extant.
It was reranked as Vepricardium (Orthocardium) by Cox et al. (1969); it was reranked as Cardium (Orthocardium) by Keen (1980) and Le Renard and Pacaud (1995).
It was assigned to Vepricardium by Cox et al. (1969); to Cardiinae by Vokes (1980); to Cardium by Keen (1980) and Le Renard and Pacaud (1995); to Veneroida by Sepkoski (2002); and to Orthocardiinae by Schneider (2002) and Bouchet et al. (2010).
It was reranked as Vepricardium (Orthocardium) by Cox et al. (1969); it was reranked as Cardium (Orthocardium) by Keen (1980) and Le Renard and Pacaud (1995).
It was assigned to Vepricardium by Cox et al. (1969); to Cardiinae by Vokes (1980); to Cardium by Keen (1980) and Le Renard and Pacaud (1995); to Veneroida by Sepkoski (2002); and to Orthocardiinae by Schneider (2002) and Bouchet et al. (2010).
Synonymy list
| Year | Name and author |
|---|---|
| 1950 | Orthocardium Tremlett |
| 1969 | Vepricardium (Orthocardium) Cox et al. p. N586 |
| 1980 | Cardium (Orthocardium) Keen p. 7 |
| 1980 | Orthocardium Vokes p. 127 |
| 1995 | Cardium (Orthocardium) Le Renard and Pacaud p. 74 |
| 2002 | Orthocardium Schneider p. 351 figs. Figure 25 |
| 2002 | Orthocardium Sepkoski |
| 2010 | Orthocardium Bouchet et al. |
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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.
G. †Orthocardium Tremlett 1950
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†Cardium (Orthocardium) gratum Defrance in Deshayes 1829
†Cardium (Orthocardium) porulosum Solander 1766
†Cardium (Orthocardium) trifidum Deshayes 1858
†Orthocardium commutatum Rovereto 1898
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Invalid names: Cardium brongniarti Mayer 1863 [replaced]
†Orthocardium stilpnaulax Cossmann 1886
Diagnosis
No diagnoses are available