Basic info | Taxonomic history | Classification | Included Taxa |
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Taxonomy
Nematocrania was named by Grant (1976) [Sepkoski's age data: P Leon-m Sepkoski's reference number: 403]. Its type is Nematocrania crassa.
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).
Species
N. crassa (type species)
Synonymy list
Year | Name and author |
---|---|
1976 | Nematocrania Grant pp. 31-32 |
2000 | Nematocrania Williams et al. p. 178 |
2002 | Nematocrania 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