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Circulocrania
Taxonomy
Circulocrania was named by Fortey and Owens (1987) [Sepkoski's age data: O Aren-u Sepkoski's reference number: 726]. It is not extant.
It was assigned to Cyclopygidae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
It was assigned to Cyclopygidae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Circulocrania Fortey and Owens |
| 2002 | Circulocrania Jell and Adrain p. 358 |
| 2002 | Circulocrania 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. †Circulocrania Fortey and Owens 1987
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009 | |||||