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Didymoceras hornbyense

Cephalopoda - Ammonitida - Nostoceratidae

Taxonomy
Heteroceras hornbyense was named by Whiteaves (1876). It is not a trace fossil.

It was recombined as Nostoceras hornbyense by Usher (1952) and Anderson (1958); it was recombined as Didymoceras hornbyense by Reyment (1955), Matsumoto (1960), Jones (1963), Howarth (1965) and Zaborski (1985).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1876Heteroceras hornbyense Whiteaves
1952Nostoceras hornbyense Usher p. 102
1955Didymoceras hornbyense Reyment p. 13 figs. Pl 1, fig 3; text-fig 2b
1958Nostoceras hornbyense Anderson p. 195
1960Didymoceras hornbyense Matsumoto pp. 157 - 158
1963Didymoceras hornbyense Jones p. 30
1965Didymoceras hornbyense Howarth p. 377
1985Didymoceras hornbyense Zaborski p. 14 figs. 12-14

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAncyloceratinaWiedmann 1966
superfamilyTurrilitoidea(Gill 1871)
familyNostoceratidaeHyatt 1894
genusDidymocerasHyatt 1900
specieshornbyense(Whiteaves 1876)

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.

Didymoceras hornbyense Whiteaves 1876
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Diagnosis
No diagnoses are available