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Geisonoceras

Cephalopoda - Orthocerida - Geisonoceratidae

Taxonomy
Geisonoceras was named by Hyatt (1884).

It was assigned to Orthoceratidae by Strand (1934); to Orthocerida by Sepkoski (2002); and to Geisonoceratidae by Teichert et al. (1964) and Kröger (2013).

Synonymy list
YearName and author
1884Geisonoceras Hyatt p. 275
1934Geisonoceras Strand
1964Geisonoceras Teichert et al. p. 236
2002Geisonoceras Sepkoski, Jr.
2013Geisonoceras Kröger

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
RankNameAuthor
phylumMollusca
classCephalopodaCuvier 1797
subclassOrthoceratoideaZhuravleva 1994
orderOrthoceridaKuhn 1940
familyGeisonoceratidaeZhuravleva 1959
genusGeisonocerasHyatt 1884

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