| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Angulotreta triangularis
Taxonomy
Angulotreta triangularis was named by Palmer (1954). Its type specimen is UT-32196f, a valve (pedicle), and it is a 3D body fossil. Its type locality is WC-751, which is in a Paibian marine limestone in the Riley Formation of Texas. It is the type species of Angulotreta.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1954 | Angulotreta triangularis Palmer p. 769 figs. Pl. 91, fig.s 1-6 |
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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.
†Angulotreta triangularis 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: Nesnidal et al. 2013, Hendy 2009, Aberhan et al. 2004 | |||||
Age range: Paibian or 497.00000 to 494.20000 Ma
Collections (24 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Paibian | USA (Texas) | Angulotreta triangularis (208613 208614 208615 208617 208653 208689 208690 208691 208692 208697 208698 208723 208740 208741 208742 208828 208837 208839 208980 208981 208982 208990) | |
| Paibian - Steptoean | Mexico | Angulotreta triangularis (236897) | |
| Steptoean | USA (Texas) | Angulotreta triangularis (208992) |