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Gyronema pulchellum
Taxonomy
Gyronema pulchellum was named by Ulrich and Scofield (1897). It is not extant. It is the type species of Gyronema.
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1897 | Gyronema pulchellum Ulrich and Scofield |
| 1897 | Gyronema liratum Ulrich and Scofield p. 1056 figs. pl. 78 f. 14-16 |
| 1930 | Gyronema pulchellum Bradley p. 239 |
| 1987 | Trochonema lirata Sloan and Webers |
| 1999 | Gyronema pulchellum Wagner p. 31 |
| 2023 | Gyronema pulchellum Wagner p. 1512 |
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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.
†Gyronema pulchellum Ulrich and Scofield 1897
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Invalid names: Gyronema liratum Ulrich and Scofield 1897 [replaced]
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 Katian to the top of the Blackriveran or 452.80000 to 449.60000 Ma
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Blackriveran | USA (Wisconsin) | Gyronema liratum (154948) | |
| Blackriveran | USA (Illinois, Iowa) | Trochonema lirata (23613 23614 23615) | |
| Blackriveran | USA (Minnesota) | Trochonema lirata (23555 23556) | |
| Blackriveran - Rocklandian | USA (Minnesota) | Gyronema pulchellum, Trochonema lirata (23557) | |
| Blackriveran - Rocklandian | USA (Illinois, Iowa) | Gyronema pulchellum (23621) | |
| Kirkfieldian | USA (Illinois, Iowa) | Gyronema pulchellum (23623 23644) | |
| Rocklandian | USA (Minnesota) | Gyronema pulchellum (154411) | |
| Rocklandian - Kirkfieldian | USA (Illinois, Iowa) | Gyronema pulchellum (23622) | |
| Rocklandian - Kirkfieldian | USA (Minnesota) | Gyronema pulchellum (23558) | |
| Shermanian | USA (Illinois, Iowa) | Gyronema pulchellum (23651 23653 23656) | |
| Shermanian | USA (Minnesota) | Gyronema pulchellum (23579) | |
| Katian | USA (Kentucky) | Gyronema pulchellum (100539 100858 100859) |