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Circotheca
Taxonomy
Circotheca was named by Syssoiev (1958) [Sepkoski's age data: V N-Da-l S Ludl Sepkoski's reference number: 288,885,1030]. Its type is Hyolithes stylus.
It was assigned to Orthothecidae by Fisher (1962); to Circothecidae by Rozanov et al. (1969) and Azmi and Pancholi (1983); to Hyolitha by Malinky (1990); and to Circothecida by Sepkoski (2002).
It was assigned to Orthothecidae by Fisher (1962); to Circothecidae by Rozanov et al. (1969) and Azmi and Pancholi (1983); to Hyolitha by Malinky (1990); and to Circothecida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1958 | Circotheca Syssoiev |
| 1962 | Circotheca Fisher p. 125 |
| 1969 | Circotheca Rozanov et al. p. 131 |
| 1983 | Circotheca Azmi and Pancholi p. 367 |
| 1990 | Circotheca Malinky p. 228 |
| 2002 | Circotheca 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. †Circotheca Syssoiev 1958
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†Circotheca hamata Qian 1978
†Circotheca kuteinikovi Rozanov et al. 1969
†Circotheca longa Chen et al. 1981
†Circotheca neptis Marek 1989
†Circotheca punctata Qian 1978
†Circotheca smetanai Valent et al. 2012
†Circotheca stylus Holm 1893
†Circotheca transulcata Qian 1978
Diagnosis
No diagnoses are available