| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Triamara
Taxonomy
Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Triamara Tillman |
| 1971 | Triamara Paul pp. 46 - 54 |
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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.
G. †Triamara Tillman 1967
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†Triamara ventricosa Miller 1879
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Invalid names: Triamara ampla Miller 1892 [synonym], Triamara cutleri Tillman 1967 [synonym], Triamara gyrina Miller and Gurley 1894 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. R. C. Paul 1971 | A genus of Aristocystitidae in which the left ambulacral branch divides once to give a total of three principal ambulacral grooves, each of which terminates in two ambulacral facets. |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Aberhan 1992, Bambach et al. 2007 | |||||
Age range: base of the Telychian to the top of the Sheinwoodian or 438.50000 to 430.50000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Clinton | USA (Indiana) | T. laevis (174514) | |
| Clinton | USA (Illinois) | T. tumida, T. ventricosa (174584) | |
| Telychian - Sheinwoodian | USA (Indiana) | Holocystites ventricosus (26803) T. spp., T. ventricosa (26798) | |
| Telychian - Wenlock | USA (Indiana) | T. tumida (26806) | |
| Sheinwoodian | USA (Indiana) | T. tumida, T. ventricosa (26805) |