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Nannostephanus

Cephalopoda - Ammonitida - Perisphinctidae

Taxonomy
Nannostephanus is a genus. It is not extant.

It was assigned to Virgatosphinctinae by Arkell et al. (1957); and to Ammonoidea by Sepkoski (2002).

Synonymy list
YearName and author
1957Nannostephanus Arkell et al. p. L332
2002Nannostephanus Sepkoski

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyPerisphinctoidea(Steinman 1890)
familyPerisphinctidaeSteinmann 1890
subfamilyVirgatosphinctinaeSpath 1923
genusNannostephanus

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.

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Diagnosis
No diagnoses are available