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Cyclonema gracile
Taxonomy
Cyclonema gracile was named by Ulrich and Scofield (1897) [Cyclonema gracile Ulrich in Ulrich & Scofield 1897]. It is not extant.
Synonymy list
| Year | Name and author |
|---|---|
| 1897 | Cyclonema gracile Ulrich and Scofield |
| 1970 | Cyclonema gracile Thompson pp. 243 - 244 figs. pl. 32 f. 1-9 |
| 2023 | Cyclonema gracile Wagner p. 582 |
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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.
†Cyclonema gracile Ulrich and Scofield 1897
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, superf = superfamily, c = class | |||||
| References: Knight et al. 1960, Wagner 2023, Batten 1984, Kiessling 2004 | |||||
Age range: Chatfieldian or 453.80000 to 451.00000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Caradoc | Canada (Ontario) | Cyclonema gracile (26276) | |
| Chatfieldian | Canada (Ontario) | Cyclonema gracile (26271 26277) |