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Grayiceras

Cephalopoda - Ammonitida - Sphaeroceratidae

Taxonomy
Grayiceras is a genus. It is not extant.

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

Synonymy list
YearName and author
1957Grayiceras Arkell et al. p. 298
2002Grayiceras Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea(Zittel 1884)
orderAmmonitidaHyatt 1889
suborderAmmonitinaHyatt 1889
superfamilyStephanoceratoidea(Newmayr 1875)
familySphaeroceratidaeBuckman 1920
subfamilyMayaitinae(Spath 1928)
genusGrayiceras

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