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Calocyrtoceras
Taxonomy
Calocyrtoceras was named by Foerste (1936) [Sepkoski's age data: S Ludl-u Sepkoski's reference number: 524].
It was assigned to Paraphragmitidae by Teichert et al. (1964) and Chen et al. (1981); and to Orthocerida by Sepkoski (2002).
It was assigned to Paraphragmitidae by Teichert et al. (1964) and Chen et al. (1981); and to Orthocerida by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
Year | Name and author |
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1936 | Calocyrtoceras Foerste p. 59 |
1964 | Calocyrtoceras Teichert et al. p. 242 |
1981 | Calocyrtoceras Chen et al. p. 30 |
2002 | Calocyrtoceras Sepkoski |
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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.
G. †Calocyrtoceras Foerste 1936
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: c = class | |||||
Reference: Kiessling 2004 |
Age range: base of the Telychian to the top of the Ludfordian or 438.50000 to 423.00000 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Telychian | China | C. sp. (228659) | |
Ludfordian | Czech Republic | C. cognatum, C. consangue (14072) |