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Eutrephoceras dorbignyanum

Cephalopoda - Nautilida - Nautilidae

Taxonomy
Nautilus dorbignyanus was named by Forbes (1846). Its type specimen is NHM C 2613 and is a 3D body fossil. Its type locality is Tome, near Concepcion, which is in a Maastrichtian marine sandstone in the Quiriquina Formation of Chile.

It was recombined as Eutrephoceras dorbignyanum by Nielsen and Salazar (2011).

Synonyms
Synonymy list
YearName and author
1846Nautilus dorbignyanus Forbes p. 265 figs. pl. 5, fig. 1a, b
1854Nautilus valenciennii Hupe p. 28 figs. pl.1, fig. 1
1895Nautilus subplicatus Steinman p. 65 figs. pl. 4, figs. 1-3
1909Nautilus subplicatus Kilian and Reboul p. 8 figs. pl. 1, fig. 1
1921Nautilus woodsi van Hoepen p. 2 figs. Pl 1, figs 1-3
1953Eutrephoceras simile Spath p. 40 figs. pl. 12, fig. 4
1956Eutrephoceras egitoense Miller and Carpenter p. 34 figs. Pl 1, figs 1-4
1960Eutrephoceras simile Wiedmann p. 152 figs. Pl 17, figs K,L; pl 23, fig E
1960Eutrephoceras subplicatum Wiedmann p. 153 figs. Pl 17, fig M; pl 20, fig E; pl 23, fig A
1965Eutrephoceras simile Howarth p. 399
1975Eutrephoceras simile Shimansky p. 56
1975Eutrephoceras subplicatum Shimansky p. 56
2005Eutrephoceras subplicatum Cichowolski et al. p. 271 figs. 5-7
2011Eutrephoceras dorbignyanum Nielsen and Salazar p. 833 figs. 2-6

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
subclassNautilia(Wade 1988)
orderNautilidaAgassiz 1847
superfamilyNautiloidea(de Blainville 1825)
familyNautilidaede Blainville 1825
genusEutrephoceras
speciesdorbignyanum(Forbes 1846)

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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Invalid names: Nautilus subplicatus Steinman 1895 [synonym], Nautilus valenciennii Hupe 1854 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height1252.721.5180.049.044.6
shell diameter1287.733.0256.086.062.7
shell inflation120.0040.0016.500.0011.90

Composition: aragoniteo
Environment: marinec
Locomotion: actively mobilef
Life habit: nektonicf
Diet: carnivoref
Vision: well-developedc
Created: 2009-09-27 10:10:59
Modified: 2009-09-27 12:10:59
Source: f = family, o = order, c = class
References: Kiessling 2004, Hendy et al. 2009, Kiessling 2003

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

Collections (25 total)


Time interval Ma Country or state Original ID and collection number
Campanian83.6 - 72.1Antarctica Eutrephoceras simile (166124 166125 166132 166133)
Early/Lower Campanian83.5 - 70.6Antarctica Eutrephoceras subplicatum (166183)
Late/Upper Campanian83.5 - 70.6Angola Eutrephoceras egitoense (166823)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Antarctica Eutrephoceras subplicatum (166189)
Maastrichtian72.1 - 66.0Mexico (Baja California) Nautilus dorbignyanus (158099)
Maastrichtian72.1 - 66.0Chile Eutrephoceras subplicatum (165586) Nautilus subplicatus (165585) Nautilus valenciennii (165542)
Maastrichtian72.1 - 66.0Antarctica Eutrephoceras subplicatum (166185 166186 166187)
Early/Lower Maastrichtian70.6 - 66.0Antarctica (Seymour Island) Eutrephoceras simile (3158)
Early/Lower Maastrichtian70.6 - 66.0Antarctica Eutrephoceras subplicatum (166184)
Late/Upper Maastrichtian70.6 - 66.0Chile Eutrephoceras dorbignyanum (165491) Nautilus dorbignyanus (165538)
Late/Upper Maastrichtian70.6 - 66.0Antarctica (Seymour Island) Eutrephoceras dorbignyanum (166008 166009 166010 166011 166012) Eutrephoceras simile (3166 3169)