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Stemmatoceras

Cephalopoda - Ammonitida - Stephanoceratidae

Taxonomy
Stemmatoceras was named as a genus. It is not extant.

It was reranked as Stephanoceras (Stemmatoceras) by Arkell (1954).

It was assigned to Stephanoceras by Arkell (1954); to Stephanoceratidae by Arkell et al. (1957); and to Ammonoidea by Sepkoski (2002).

Synonymy list
YearName and author
1954Stephanoceras (Stemmatoceras) Arkell p. 582
1957Stemmatoceras Arkell et al. p. 289
2002Stemmatoceras Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
subclassAmmonoidea(Zittel 1884)
orderAmmonitidaHyatt 1889
suborderAmmonitinaHyatt 1889
superfamilyStephanoceratoidea(Newmayr 1875)
familyStephanoceratidaeNeumayr 1875
genusStemmatoceras

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