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Taxonomy
Ctena (Ctena) was named by Mörch (1860). It is extant.
It was assigned to Ctena by Mörch (1860), Cox et al. (1969), Moore (1988), Mandic et al. (2002), Vera-Peláez et al. (2004).
It was assigned to Ctena by Mörch (1860), Cox et al. (1969), Moore (1988), Mandic et al. (2002), Vera-Peláez et al. (2004).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1860 | Ctena (Ctena) Mörch |
| 1969 | Ctena (Ctena) Cox et al. p. 494 |
| 1988 | Ctena (Ctena) Moore p. D12 |
| 2002 | Ctena (Ctena) Mandic et al. p. 300 |
| 2004 | Ctena (Ctena) Vera-Peláez et al. p. 255 |
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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. Ctena (Ctena) Mörch 1860
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Ctena (Ctena) divergens Philippi 1850
†Ctena (Ctena) magnoliana Dall 1903
Ctena (Ctena) mexicana Dall 1901
†Ctena (Ctena) microimbricata Gardner 1943
†Ctena (Ctena) speciosa Rogers and Rogers 1837
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Kiessling 2004, Aberhan et al. 2004, Sanchez Roig 1926 | |||||
Age range
Maximum range based only on fossils: base of the Badenian to the top of the Holocene or 13.82000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 12.8 Ma
Minimum age of oldest fossil (stem group age): 12.8 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Badenian | Slovakia | Ctena exigua (73137) | |
| Early/Lower Pliocene | USA (South Carolina) | Ctena speciosa (60939) | |
| Zanclean | Belgium | Ctena decorata (86802) | |
| Zanclean | USA (South Carolina) | Ctena speciosa (60940) | |
| Late/Upper Pliocene | USA (Florida) | Codakia speciosa (59487) Codakia speciosa, Codakia magnoliana (59484) | |
| Late/Upper Pliocene | USA (Virginia) | Ctena speciosa (78262) | |
| Late/Upper Pliocene | USA (North Carolina) | Ctena speciosa, Ctena magnoliana, Ctena microimbricata (59307) | |
| Piacenzian | Belgium | Ctena decorata (86804 86805) | |
| Late/Upper Pleistocene (interglacial) | Mexico (Baja California) | Ctena mexicana (89573 194399 194406) | |
| Late/Upper Pleistocene | Mexico (Sonora) | Ctena mexicana (44963) | |
| Late/Upper Pleistocene | Djibouti | Codakia divergens (96793) | |
| Late/Upper Pleistocene | Japan | Codakia divergens (88886) | |
| Late/Upper Pleistocene | Mexico (Baja California Sur) | Codakia mexicana (89597) | |
| Holocene | Vanuatu | Codakia divergens (77907) |