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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Opisthotreta depressa
Taxonomy
Opisthotreta depressa was named by Palmer (1954). Its type specimen is UT-32202d, a valve (pedicle), and it is a 3D body fossil. Its type locality is TC-660, which is in a Guzhangian marine limestone/siltstone in the Riley Formation of Texas. It is the type species of Opisthotreta.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1954 | Opisthotreta depressa Palmer p. 771 figs. Pl. 90, figs. 19-22 |
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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.
†Opisthotreta depressa Palmer 1954
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order, c = class, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy 2009 | |||||
Age range: Guzhangian or 500.50000 to 497.00000 Ma
Collections (37 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Marjumian | USA (Texas) | Opisthotreta depressa (208619 208620 208621 208658 208677 208708 208726 208753 208754 208843 208844) | |
| Guzhangian | USA (Texas) | Opisthotreta depressa (208645 208646 208647 208648 208660 208662 208668 208679 208681 208683 208684 208685 208686 208728 208729 208755 208756 208758 type locality: 208759 208760 208761 208849 208850 208851 208852 208987) |