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Opisthocoelus
Taxonomy
Opisthocoelus was named by Beushausen (1895) [Sepkoski's age data: S u D Fras]. Its type is Opisthocoelus concentricus.
It was reranked as Lunulicardium (Opisthocoelus) by Clarke (1904).
It was assigned to Lunulicardium by Clarke (1904); to Cardiolinae by Cox et al. (1969); and to Praecardioida by Sepkoski (2002).
It was reranked as Lunulicardium (Opisthocoelus) by Clarke (1904).
It was assigned to Lunulicardium by Clarke (1904); to Cardiolinae by Cox et al. (1969); and to Praecardioida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1895 | Opisthocoelus Beushausen p. 388 |
| 1904 | Lunulicardium (Opisthocoelus) Clarke p. 246 |
| 1969 | Opisthocoelus Cox et al. p. N245 |
| 2002 | Opisthocoelus 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.
G. †Opisthocoelus Beushausen 1895
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†Lunulicardium (Opisthocoelus) transversale Clarke 1904
†Opisthocoelus ausavensis Steininger 1853
†Opisthocoelus concentricus Beushausen 1895
Diagnosis
No diagnoses are available