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Cosmomya (Palaeocosmomya)
Taxonomy
Palaeocosmomya was named by Fletcher (1946).
It was reranked as Cosmomya (Palaeocosmomya) by Dickins and Shah (1965) and Neves et al. (2014).
It was assigned to Pholadomyidae by Fletcher (1946); and to Cosmomya by Dickins and Shah (1965) and Neves et al. (2014).
It was reranked as Cosmomya (Palaeocosmomya) by Dickins and Shah (1965) and Neves et al. (2014).
It was assigned to Pholadomyidae by Fletcher (1946); and to Cosmomya by Dickins and Shah (1965) and Neves et al. (2014).
Synonymy list
| Year | Name and author |
|---|---|
| 1946 | Palaeocosmomya Fletcher |
| 1965 | Cosmomya (Palaeocosmomya) Dickins and Shah p. 256 |
| 2014 | Cosmomya (Palaeocosmomya) Neves et al. p. 224 |
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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. †Cosmomya (Palaeocosmomya) Fletcher 1946
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†Cosmomya (Palaeocosmomya) aplata Fletcher 1946
†Cosmomya (Palaeocosmomya) baitaquensis Neves et al. 2014
†Cosmomya (Palaeocosmomya) teicherti Fletcher 1946
†Palaeocosmomya kochi Newell 1955
†Palaeocosmomya omoloniformica Guskov 1984
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 9 | 24.3 | 15.0 | 67.2 | 23.0 | 15.7 | |
| valve height | 4 | 63.3 | 59.9 | 70.0 | 62.0 | 4.76 |
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| Source: g = genus, f = family, c = class | |||||
| References: Clapham 2015, Aberhan et al. 2004 | |||||
Age range: base of the Asselian to the top of the Wuchiapingian or 298.90000 to 254.17000 Ma
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Asselian | Russian Federation | Palaeocosmomya sp. nov. (102159) | |
| Sakmarian | Australia (Western Australia) | Palaeocosmomya sp. nov. (85021 107345) | |
| Sakmarian | Brazil | Cosmomya baitaquensis (155153) | |
| Sakmarian | Russian Federation | Palaeocosmomya omolonica (102160) | |
| Sakmarian | Mongolia | Palaeocosmomya omoloniformica (81140) | |
| Artinskian | Australia (Western Australia) | Cosmomya teicherti (85227) Palaeocosmomya aplatum (101256) Palaeocosmomya teicherti (108409) | |
| Artinskian | Mongolia | Palaeocosmomya omoloniformica (81141) | |
| Artinskian | Russian Federation | Palaeocosmomya omolonica (102162) | |
| Kungurian | Australia (Western Australia) | Palaeocosmomya teicherti (101265 108410) | |
| Kungurian | Russian Federation | Palaeocosmomya kochi (109986 113948) Palaeocosmomya omoloniformica (114391) Palaeocosmomya sp. (113905) Palaeocosmomya sp., Palaeocosmomya omoloniformica (110010) | |
| Wuchiapingian | Russian Federation | Palaeocosmomya kochi (97376) | |
| Wuchiapingian | Greenland | Palaeocosmomya kochi (96754) |