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Tetravirga imperforata
Taxonomy
Tetravirga imperforata was named by Frizzell and Exline (1955). It is considered to be a form taxon. It is the type species of Tetravirga.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1955 | Tetravirga imperforata Frizzell and Exline |
| 1962 | Tetravirga imperforata Deflandre-Rigaud p. 43 |
| 1968 | Tetravirga imperforata Mostler p. 10 figs. pl. 1 fig. 4 |
| 1971 | Tetravirga imperforata Kozur and Mostler p. 27 |
| 1971 | Tetravirga imperforata Mostler p. 6 figs. pl. 1 figs 1-3 |
| 1976 | Tetravirga imperforata Mostler and Rahimi-Yazd p. 5 |
| 1977 | Tetravirga imperforata Wernlund p. 80 |
| 1980 | Tetravirga imperforata Mostler p. 337 |
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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.
†Tetravirga imperforata Frizzell and Exline 1955
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: base of the Mississippian to the top of the Carnian or 358.86000 to 227.30000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Mississippian | Afghanistan | Tetravirga imperforata (99508) | |
| Pelsonian | Austria | Tetravirga imperforata (99797) | |
| Ladinian | Hungary | Tetravirga imperforata (99503 99504) | |
| Carnian | Hungary | Tetravirga imperforata (99502) |