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Didymoceras nebrascense

Cephalopoda - Ammonitida - Nostoceratidae

Taxonomy
Ancyloceras nebrascensis was named by Meek and Hayden (1856). It is not a trace fossil.

It was recombined as Turrilites nebrascensis by Meek and Hayden (1856); it was recombined as Helicoceras nebrascense by Meek and Hayden (1860); it was recombined as Heteroceras nebrascense by Stanton (1888); it was recombined as Cirroceras nebraskense by Wright (1957); it was recombined as Nostoceras (Didymoceras) nebrascense by Wright (1996); it was recombined as Didymoceras nebrascense by Kennedy and Bilotte (1995) and Kennedy et al. (2000).

Sister species lacking formal opinion data
D. abyssinus, D. indicum

Synonyms
Synonymy list
YearName and author
1856Ancyloceras nebrascensis Meek and Hayden p. 71
1856Turrilites nebrascensis Meek and Hayden p. 280
1860Helicoceras nebrascense Meek and Hayden p. 185
1888Heteroceras nebrascense Stanton p. 186
1894Emperoceras beecheri Hyatt p. 575 figs. pl. 14, figs. 15-17
1902Heteroceras simplicostatum Whitfield p. 68 figs. pls. 23-27
1957Cirroceras nebraskense Wright p. 224
1957Emperoceras simplicostatum Wright p. 224
1995Didymoceras nebrascense Kennedy and Bilotte p. 364
1996Nostoceras (Didymoceras) nebrascense Wright p. 247
2000Didymoceras nebrascense Kennedy et al. p. 7

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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
speciesnebrascense(Meek and Hayden 1856)

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 nebrascense Meek and Hayden 1856
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Invalid names: Emperoceras beecheri Hyatt 1894 [synonym], Emperoceras simplicostatum Whitfield 1902 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteo
Environment: marinec
Locomotion: fast-movingo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:27:03
Modified: 2009-10-08 14:14:55
Source: o = order, c = class
References: Kiessling 2004, Kiessling 2003

Age range: Late/Upper Campanian or 83.50000 to 70.60000 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian83.5 - 70.6USA (New Mexico) Didymoceras nebrascense (88556)
Late/Upper Campanian83.5 - 70.6USA (Wyoming) Didymoceras nebrascense (1646 1649 1650)
Late/Upper Campanian83.5 - 70.6USA (Montana) Didymoceras nebrascense (88462 88463 88464 213091)