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Ermoceras

Cephalopoda - Ammonitida - Stephanoceratidae

Taxonomy
Ermoceras was named by Douvillé (1916) [Sepkoski's age data: J Bajo-u].

It was assigned to Stephanoceratidae by Arkell (1952) and Arkell et al. (1957); and to Ammonoidea by Sepkoski (2002).

Synonymy list
YearName and author
1916Ermoceras Douvillé p. 17
1952Ermoceras Arkell p. 272
1957Ermoceras Arkell et al. p. 290
2002Ermoceras 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
genusErmoceras

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