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Cycloholcus
Taxonomy
Cycloholcus was named by Knight (1947) [Sepkoski's age data: Cm Dres-l Sepkoski's reference number: 111]. It is not extant. Its type is Cycloholcus nummus.
It was assigned to Coreospiridae by Knight et al. (1960); to Helcionellidae by Runnegar and Jell (1976); and to Mollusca by Sepkoski (2002).
It was assigned to Coreospiridae by Knight et al. (1960); to Helcionellidae by Runnegar and Jell (1976); and to Mollusca by Sepkoski (2002).
Species
C. nummus (type species)
Synonymy list
Year | Name and author |
---|---|
1947 | Cycloholcus Knight |
1960 | Cycloholcus Knight et al. p. 172 |
1976 | Cycloholcus Runnegar and Jell p. 116 |
2002 | Cycloholcus 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.
Diagnosis
No diagnoses are available