| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Composita sigma
Taxonomy
Composita sigma was named by Gordon (1975).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Composita sigma Gordon |
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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.
†Composita sigma Gordon 1975
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: Serpukhovian or 330.90000 to 323.20000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chesterian - Alportian | USA (Wyoming) | Composita sigma (5688 5693 5694 5696 5712 5718 5720 5722 5723) | |
| Serpukhovian | USA (Idaho) | Composita sigma (93283 93286 93288) |