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Proturritella historicum
Taxonomy
Eunema historicum was named by Hudson (1905). It is not extant.
It was recombined as Gyronema historicum by Thompson (1970), Rohr (1988); it was recombined as Proturritella historicum by Wagner (2023).
It was recombined as Gyronema historicum by Thompson (1970), Rohr (1988); it was recombined as Proturritella historicum by Wagner (2023).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1905 | Eunema epitome Hudson |
| 1905 | Eunema historicum Hudson |
| 1905 | Eunema epitome Hudson p. 290 figs. pl. 4 f. 6-7 |
| 1905 | Eunema altisulcatum Hudson p. 291 figs. pl. 5 f. 3 |
| 1905 | Cyclonema normaliana Raymond |
| 1908 | Eunema altisulcatum Raymond p. 208 |
| 1908 | Eunema epitome Raymond p. 208 |
| 1970 | Gyronema historicum Thompson p. 261 |
| 1988 | Gyronema historicum Rohr p. 563 figs. f. 5.30 |
| 2023 | Proturritella historicum Wagner p. 584 |
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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.
†Proturritella historicum Hudson 1905
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Invalid names: Proturritella altisulcatum Hudson 1905 [synonym], Proturritella epitome Hudson 1905 [synonym], Proturritella normaliana Raymond 1905 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Bambach et al. 2007 | |||||
Age range: base of the Chazyan to the top of the Early/Lower Devonian or 471.30000 to 393.47000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chazyan | USA (New York) | Eunema historicum (172342) Gyronema historicum (164475) | |
| Ashgill | USA (California) | Gyronema historicum (69236) | |
| Early/Lower Devonian | USA (California) | Gyronema historicum (69242) |