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Taxonomy
Orthisocrania was named by Rowell (1963) [Sepkoski's age data: O Aren-u O u Sepkoski's reference number: 1]. It is not extant.
It was assigned to Craniidae by Williams et al. (2000); and to Acrotretida by Sepkoski (2002).
It was assigned to Craniidae by Williams et al. (2000); and to Acrotretida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1963 | Orthisocrania Rowell |
| 2000 | Orthisocrania Williams et al. p. 180 |
| 2002 | Orthisocrania 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. †Orthisocrania Rowell 1963
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Diagnosis
No diagnoses are available