| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Helicotoma proserpina
Taxonomy
Helicotoma proserpina was named by Billings (1865). It is not extant.
Synonymy list
| Year | Name and author |
|---|---|
| 1865 | Helicotoma proserpina Billings |
| 1897 | Helicotoma proserpina Ulrich and Scofield p. 1033 |
| 2001 | Helicotoma proserpina Rohr and Measures p. 288 |
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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 proserpina Billings 1865
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| References: Kiessling 2004, Wagner 2023 | |||||
Age range: Jeffersonian or 486.85000 to 471.30000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Jeffersonian | Canada (Newfoundland and Labrador) | Helicotoma proserpina (100029) |