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Nostoceras (Didymoceras) obtusum

Cephalopoda - Ammonitida - Nostoceratidae

Taxonomy
Nostoceras obtusum was named by Howarth (1965). Its type specimen is BMNH C. 52744, a shell, and it is a 3D body fossil.

It was recombined as Nostoceras (Didymoceras) obtusum by Küchler and Odin (2001).

Sister species lacking formal opinion data
Didymoceras abyssinus, Didymoceras indicum, N. angolense, N. turrilites

Synonymy list
YearName and author
1965Nostoceras obtusum Howarth p. 384 figs. pl. 10, fig. 2
2000Nostoceras obtusum Kennedy et al. p. 6 figs. Pl 1, figs 5,6; text-fig 5
2001Nostoceras (Didymoceras) obtusum Küchler and Odin p. 507 figs. Pl 4, fig 7; pl 5, figs 21-25

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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
genusNostocerasHyatt 1900
subgenusDidymoceras
speciesobtusum()

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.

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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 2003, Kiessling 2004

Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian83.5 - 70.6USA (Colorado) Nostoceras obtusum (178528)
Late/Upper Campanian83.5 - 70.6France (Landes) Nostoceras obtusum (214052 214203)
Early/Lower Maastrichtian70.6 - 66.0France (Landes) Nostoceras obtusum (214109 214174) Nostoceras schloenbachi (214219)