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Paraliospira helena
Taxonomy
Pleurotomaria helena was named by Billings (1860). It is a 3D body fossil.
It was recombined as Liospira helena by Ulrich and Scofield (1897), Foerste (1924), Twenhofel (1928), Rohr (1980); it was recombined as Paraliospira helena by Wagner (2023).
It was recombined as Liospira helena by Ulrich and Scofield (1897), Foerste (1924), Twenhofel (1928), Rohr (1980); it was recombined as Paraliospira helena by Wagner (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1860 | Pleurotomaria helena Billings p. 165 fig. 8 |
| 1897 | Liospira helena Ulrich and Scofield p. 994 |
| 1924 | Liospira helena Foerste p. 209 figs. pl. 36 f. 1a-c |
| 1928 | Liospira helena Twenhofel p. 236 figs. pl. 44 f. 4-5 |
| 1980 | Liospira helena Rohr p. 168 figs. pl. 6 f. 19-22 |
| 2023 | Paraliospira helena Wagner p. 1610 |
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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.
†Paraliospira helena Billings 1860
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order | |||||
| References: Hendy 2009, Bambach et al. 2007 | |||||
Age range: base of the Richmondian to the top of the Gamachian or 449.60000 to 443.10000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Caradoc | USA (California) | Liospira helena (69220 69222 69228) | |
| Richmondian | Canada (Ontario) | Liospira helena (22960 155173 173016 173018 173175) | |
| Ashgill | USA (California) | Liospira helena (69225) | |
| Gamachian | Canada (Québec) | Liospira helena (63773) |