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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Cyclonema thalia
Taxonomy
Pleurotomaria thalia was named by Billings (1857). It is not extant.
It was recombined as Cyclonema thalia by Billings (1866), Twenhofel (1928), Thompson (1970), Wagner (2023).
It was recombined as Cyclonema thalia by Billings (1866), Twenhofel (1928), Thompson (1970), Wagner (2023).
Sister species lacking formal opinion data
Synonymy list
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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 thalia Billings 1857
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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: Wagner 2023, Knight et al. 1960, Batten 1984, Kiessling 2004 | |||||
Age range: base of the Richmondian to the top of the Gamachian or 449.60000 to 443.10000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Richmondian | Canada (Quebec) | Cyclonema thalia (63667) | |
| Richmondian | Canada (Québec) | Cyclonema thalia (63728) | |
| Gamachian | Canada (Québec) | Cyclonema thalia (63767 63773) |