| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Trapezium subtriangulum
Taxonomy
Trapezium subtriangulum was named by Imlay (1940).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1940 | Trapezium subtriangulum Imlay p. 152 figs. Pl 6, figs 5,6 |
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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.
†Trapezium subtriangulum Imlay 1940
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: Berriasian or 143.10000 to 137.05000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Berriasian | Mexico (Durango) | Trapezium subtriangulum (2154) |