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Periploma (Aelga)
Taxonomy
Aelga was named as a genus. It is not extant.
It was reranked as Periplima (Aelga) by Kafanov and Ogasawara (2003); it was reranked as Periploma (Aelga) by Kafanov et al. (2005).
It was assigned to Pholadomyoida by Sepkoski (2002); and to Periploma by Kafanov and Ogasawara (2003), Kafanov et al. (2005).
It was reranked as Periplima (Aelga) by Kafanov and Ogasawara (2003); it was reranked as Periploma (Aelga) by Kafanov et al. (2005).
It was assigned to Pholadomyoida by Sepkoski (2002); and to Periploma by Kafanov and Ogasawara (2003), Kafanov et al. (2005).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Aelga Sepkoski |
| 2003 | Periplima (Aelga) Kafanov and Ogasawara p. 51 |
| 2005 | Periploma (Aelga) Kafanov et al. p. 6 |
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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. †Periploma (Aelga)
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| References: Todd 2001, Sanchez Roig 1926, Aberhan et al. 2004 | |||||
Age range: base of the Early/Lower Eocene to the top of the Tortonian or 56.00000 to 7.24600 Ma
Collections (36 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Eocene | Russian Federation | Periploma korniana (70564) | |
| Eocene | Russian Federation | Periploma ilpinensis (50129) | |
| Lutetian - Bartonian | Russian Federation | Periploma altarata (50126) Periploma korniana (50051) | |
| Bartonian - Priabonian | Russian Federation | Periploma circularis, Periploma korniana (50040) | |
| Late/Upper Eocene | Japan | Periploma besshoensis (70424) | |
| Early/Lower Oligocene | Russian Federation | Periploma besshoensis (70445 70518) Periploma gastellovi, Periploma korniana (70463) | |
| Early/Lower Oligocene | Japan | Periploma besshoense, Periploma ezoense (68894) | |
| Rupelian | Russian Federation | Periploma altarata, Periploma besshoensis (49975) Periploma besshoensis, Periploma circularis, Periploma djakovi, Periploma altarata (49980) | |
| Oligocene | Russian Federation | Periploma besshoensis (49974) | |
| Late/Upper Oligocene | Russian Federation | Periploma altarata, Periploma moneronica, Periploma yokoyamai (70475) Periploma besshoensis, Periploma ochotensis (70565) Periploma djakovi, Periploma yokoyamai (70528) Periploma korniana (70464) | |
| Chattian - Aquitanian | Russian Federation | Periploma besshoensis (50123) | |
| Aquitanian - Burdigalian | Russian Federation | Periploma besshoensis, Periploma yokoyamai (50041) | |
| Early/Lower Miocene | Russian Federation | Periploma besshoesnsis, Periploma yokoyamai (70448) | |
| Early/Lower Miocene - Middle Miocene | USA (Alaska) | Periploma besshoense (37642 37645 37647 37649 37654 37657 37663) | |
| Burdigalian - Serravallian | USA (Alaska) | Periploma besshoense (37383) | |
| Langhian - Serravallian | Russian Federation | Periploma kavranensis (50037) Periploma yokoyamai (50038) | |
| Middle Miocene | Russian Federation | Periploma besshoensis (70568) Periploma besshoensis, Periploma yokoymai (70446) | |
| Tortonian | Russian Federation | Periploma yokoyamai (49978) | |
| Late/Upper Miocene | Russian Federation | Periploma besshoensis (70532) Periploma ochotensis (70465 70567) |