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Helicotoma tennesseensis
Taxonomy
Helicotoma tennesseensis was named by Safford (1869). It is not extant.
Synonymy list
| Year | Name and author |
|---|---|
| 1869 | Helicotoma tennesseensis Safford |
| 1897 | Helicotoma tennesseensis Ulrich and Scofield p. 1034 figs. pl. 74 f. 20-24 |
| 1951 | Helicotoma tennesseensis Wilson p. 64 |
| 2023 | Helicotoma tennesseensis Wagner p. 828 |
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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.
†Helicotoma tennesseensis Safford 1869
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| References: Wagner 2023, Kiessling 2004 | |||||
Age range: Turinian or 457.30000 to 453.80000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Caradoc | USA (Georgia) | Helicotoma tennesseensis (33182 33186 33188) | |
| Turinian | USA (Missouri) | Helicotoma tennesseensis (175724) | |
| Ashbyan | USA (Virginia) | Helicotoma tennesseensis (33544 33545 33546 33547) | |
| Ashbyan | USA (Tennessee) | Helicotoma tennesseensis (5327) |