| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Amphidesma was named as a genus. It is extant.
It was reranked as Semele (Amphidesma) by Coan et al. (2000).
It was assigned to Semele by Coan et al. (2000); to Veneroida by Sepkoski (2002); and to Amphidesmatidae by Bouchet et al. (2010).
It was reranked as Semele (Amphidesma) by Coan et al. (2000).
It was assigned to Semele by Coan et al. (2000); to Veneroida by Sepkoski (2002); and to Amphidesmatidae by Bouchet et al. (2010).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Semele (Amphidesma) Coan et al. p. 434 |
| 2002 | Amphidesma Sepkoski |
| 2010 | Amphidesma 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.
Subg. Semele (Amphidesma)
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†Amphidesma brevirostrum Hupé 1854
†Amphidesma mississippiensis Conrad 1848
†Amphidesma profunda Conrad 1893
Semele (Amphidesma) venusta Reeve 1853
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Invalid names: Semele incongrua Carpenter 1864 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| References: Aberhan et al. 2004, Sanchez Roig 1926 | |||||
Age range
Maximum range based only on fossils: base of the Bartonian to the top of the Late/Upper Pleistocene or 41.30000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 38.0 Ma
Minimum age of oldest fossil (stem group age): 38.0 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bartonian | USA (Alabama) | Semele profunda (90600 205489) | |
| Rupelian | USA (Mississippi) | Amphidesma mississippiensis (84137) | |
| Chattian | Panama | Semele venusta (42558) | |
| Middle Pleistocene | USA (California) | Semele incongrua (138723 202493 202636 202637 202647 203108 223327) | |
| Late/Upper Pleistocene | USA (California) | Semele incongrua (226458) Semele venusta (96930 96936 96939) |