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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Promyalina groenlandica
Taxonomy
Promyalina groenlandica was named by Newell (1955).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1955 | Promyalina groenlandica Newell p. 25 figs. Pl 5, figs 11-13 |
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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.
†Promyalina groenlandica Newell 1955
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 2 | 17.4 | 15.5 | 19.6 | 17.6 | 2.94 |
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| Source: subc = subclass, c = class | |||||
| References: Eaton 1871, Aberhan et al. 2004 | |||||
Age range: base of the Wuchiapingian to the top of the Griesbachian or 259.51000 to 250.50000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | China (Hunan) | Promyalina groenlandica (121731) | |
| Griesbachian | Greenland | Myalina schamarae (48113 48114 48115) Promyalina groenlandica (115896) | |
| Early/Lower Triassic | Greenland | Myalina schamarae (48120) |