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Aechminella trispinosa
Taxonomy
Aechminella trispinosa was named by Harlton (1933). Its type specimen is USNM 85544 and is a 3D body fossil. Its type locality is Johns Valley Shale, Ouachita Mountains loc. 10, which is in a Pennsylvanian marine shale in the Johns Valley Formation of Oklahoma. It is the type species of Aechminella.
Synonymy list
| Year | Name and author |
|---|---|
| 1933 | Aechminella trispinosa Harlton p. 19 figs. pl. 6, figs. 10a-b |
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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.
†Aechminella trispinosa Harlton 1933
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Alvarez et al. 2008 | |||||
Age range: Early/Lower Pennsylvanian or 323.20000 to 315.20000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Pennsylvanian | USA (Oklahoma) | Aechminella trispinosa (type locality: 132878) |