Basic info | Taxonomic history | Classification | Included Taxa |
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) and Wagner (2023).
It was recombined as Cyclonema thalia by Billings (1866), Twenhofel (1928), Thompson (1970) and Wagner (2023).
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: Kiessling 2004, Batten 1984, Knight et al. 1960, Wagner 2023 |
Age range: base of the Gamachian to the top of the Richmondian or 449.50000 to 445.50000 Ma
Collections (4 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Richmondian | Canada (Québec) | Cyclonema thalia (63728) | |
Richmondian | Canada (Quebec) | Cyclonema thalia (63667) | |
Gamachian | Canada (Québec) | Cyclonema thalia (63767 63773) |