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Cremnorthis
Taxonomy
Cremnorthis was named by Williams (1963). Its type is Cremnorthis parva.
It was assigned to Cremnorthinae by Mitchell (1977); to Cremnorthidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
It was assigned to Cremnorthinae by Mitchell (1977); to Cremnorthidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
Species
C. parva (type species)
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1963 | Cremnorthis Williams |
| 1977 | Cremnorthis Mitchell |
| 2000 | Cremnorthis Williams et al. p. 762 |
| 2002 | Cremnorthis 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