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Didymoceras

Cephalopoda - Ammonitida - Nostoceratidae

Synonyms
Synonymy list
YearName and author
1894Emperoceras Hyatt p. 575
1900Didymoceras Hyatt
1955Didymoceras Reyment p. 13
1976Didymoceras Atabekyan and Khakimov p. 43
1979Didymoceras Wright p. 294
1985Didymoceras Morozumi p. 34
1985Didymoceras Zaborski p. 14
1993Didymoceratoides Kennedy and Cobban p. 90
1993Didymoceras Kennedy and Cobban p. 421
1994Didymoceras Kennedy and Cobban p. 1290
1995Didymoceras Kennedy and Bilotte p. 364
1996Nostoceras (Didymoceras) Wright et al. p. 247
1997Didymoceras Kennedy and Cobban p. 67
1999Didymoceras Kennedy and Summesberger p. 26
2000Didymoceras Kennedy p. 469
2000Didymoceras Kennedy et al. p. 9
2000Didymoceras Kennedy et al. p. 6
2002Didymoceras Sepkoski
2002Emperoceras Sepkoski
2015Didymoceras Ifrim et al. p. 246
2016Didymoceras Shigeta p. 345

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

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.

G. †Didymoceras Hyatt 1900
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†Didymoceras angulatum Meek and Hayden 1860
†Didymoceras aurarium Kennedy et al. 2000
†Didymoceras awajiense Yabe 1901
†Didymoceras binodosum Kennedy and Cobban 1993
†Didymoceras californicum Anderson 1958
†Didymoceras cheyenense Meek and Hayden 1856
†Didymoceras cheyennense Meek and Hayden 1856
†Didymoceras cochleatus Meek and Hayden 1858
†Didymoceras donezianum Michailov 1951
†Didymoceras draconis Stephenson 1941
†Didymoceras hidakense Shigeta 2016
†Didymoceras hornbyense Whiteaves 1876
†Didymoceras nebrascense Meek and Hayden 1856
+
Invalid names: Emperoceras beecheri Hyatt 1894 [synonym], Emperoceras simplicostatum Whitfield 1902 [synonym]
†Didymoceras newtoni Whitfield 1877
†Didymoceras nicolletii Hall and Meek 1855
†Didymoceras platycostatum Kennedy and Cobban 1993
†Didymoceras stevensoni Whitfield 1877
†Didymoceras tenuicostatus Meek and Hayden 1858
†Didymoceras tortus Meek and Hayden 1858
†Didymoceras tricostatus Whitfield 1897
†Didymoceras umbilicatus Meek and Hayden 1858
†Didymoceras uncus Meek and Hayden 1858
+
Invalid names: Didymoceras fresnoense Anderson 1958 [synonym]
†Didymoceras vespertinus Conrad 1874
†Didymoceras whiteavesi Anderson 1958
†Nostoceras (Didymoceras) attenuatum Brunnschweiler 1966
†Nostoceras (Didymoceras) varium Blaszkiewicz 1980
Invalid names: Didymoceratoides Kennedy and Cobban 1993 [synonym], Emperoceras Hyatt 1894 [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 2003, Kiessling 2004

Age range: base of the Cenomanian to the top of the Early/Lower Maastrichtian or 100.50000 to 66.00000 Ma

Collections (117 total)


Time interval Ma Country or state Original ID and collection number
Cretaceous145.0 - 66.0USA (South Dakota) Ancyloceras nicolletii (235524)
Cenomanian - Turonian100.5 - 89.8Japan (Hokkaido) D. sp. (94681)
Middle Coniacian89.3 - 85.8South Africa D. indicum (82440 82455)
Late/Upper Santonian85.8 - 83.5South Africa D. indicum (82629)
Campanian83.6 - 72.1USA (Alaska) D. hornbyense (88818)
Campanian83.6 - 72.1USA (New Mexico) D. sp. (88553)
Campanian83.6 - 72.1USA (California) D. californicum, Exiteloceras bennisoni (86859)
Campanian83.6 - 72.1Spain D. sp. (66996)
Campanian83.6 - 72.1South Africa D. sp. (71008)
Campanian83.6 - 72.1Turkey D. binodosum (130882 130883 130884)
Campanian83.6 - 72.1USA (Wyoming) D. sp. (1654 1657 1671 1673)
Early/Lower Campanian - Middle Campanian83.5 - 70.6USA (California) D. sp. (144766)
Late/Upper Campanian83.5 - 70.6USA (Alaska) D. hornbyense (88816 158222 158227 158386)
Late/Upper Campanian83.5 - 70.6USA (Nebraska) D. cheyennense (88472)
Late/Upper Campanian83.5 - 70.6Germany Nostoceras varium, Nostoceras postremum (64215)
Late/Upper Campanian83.5 - 70.6Uzbekistan D. vancouverensis (185087)
Late/Upper Campanian83.5 - 70.6USA (Delaware) D. sp. (6157 6171) D. stevensoni (183120) Nostoceras draconis, D. cheyennense (83133)
Late/Upper Campanian83.5 - 70.6Iraq D. sp. (65987 65988)
Late/Upper Campanian83.5 - 70.6Angola D. californicum (88884) D. hornbyense (88882) D. sp. (88885) D. subtuberculatum (88883)
Late/Upper Campanian83.5 - 70.6Japan D. awajiense (4897 176800) D. hidakense (181927 181929)
Late/Upper Campanian83.5 - 70.6Austria D. binodosum, D. donezianum (48008)
Late/Upper Campanian83.5 - 70.6USA (New Mexico) D. cheyennense (88560 88562) D. nebrascense (88556)
Late/Upper Campanian83.5 - 70.6USA (South Dakota) D. nebrascense (234300)
Late/Upper Campanian83.5 - 70.6France (Landes) Nostoceras attenuatum (213865) Nostoceras densecostatum (213848) Nostoceras obtusum (214052 214203) Nostoceras postremum (213836 213838) Nostoceras sp. 1 (213834 213841) Nostoceras sp. 2 (213862)
Late/Upper Campanian83.5 - 70.6Tajikistan D. sp. 1, Nostoceras draconis, D. vancouverensis (185088)
Late/Upper Campanian83.5 - 70.6France D. stevensoni (82889)
Late/Upper Campanian83.5 - 70.6South Africa D. indicum (82458)
Late/Upper Campanian83.5 - 70.6Mexico (Coahuila) D. donezianum (174742)
Late/Upper Campanian83.5 - 70.6USA (Colorado) D. aurarium (90158) D. cheyennense (88474) D. draconis (178535 178536 178537 178538) D. stevensoni (88467 88468) D. stevensoni, D. cheyennense (88471) Nostoceras obtusum (178528)
Late/Upper Campanian83.5 - 70.6USA (Wyoming) D. nebrascense (1646 1649 1650) D. sp. (1616) D. stevensoni (1645 88441)
Late/Upper Campanian83.5 - 70.6Nigeria D. hornbyense, D. cheyennense (69626)
Late/Upper Campanian83.5 - 70.6USA (Arkansas) D. sp., D. donezianum (83055) D. sp., D. mortoni, D. cochleatum, D. tortum, Nostoceras platycostatum (83054) D. sp., D. mortoni, D. tortum, Nostoceras platycostatum (83094) Didymoceratoides clardyi, Didymoceratoides binodosum (83092) Nostoceras draconis (83045)
Late/Upper Campanian83.5 - 70.6USA (Montana) D. cheyennense (88470) D. n. sp. (213170) D. nebrascense (88462 88463 88464 213091 235360) D. stevensoni (88465 213163 213164 213171)
Late/Upper Campanian83.5 - 70.6USA (California) D. fresnoense (185396) D. hornbyense (225837) D. hornbyense, D. vancouverense (225372)
Middle Campanian83.5 - 70.6USA (Delaware) D. platycostatum, D. stevensoni (35049)
Middle Campanian83.5 - 70.6USA (California) D. sp. (144764)
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (Delaware) D. binodosum (35048)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (Montana) D. abyssinus (213168)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (New Jersey) D. sp. (57916)
Maastrichtian72.1 - 66.0Australia (Western Australia) Nostoceras attenuatum (83839 83841 83842 83843 83844 83846 83847 83859)
Maastrichtian72.1 - 66.0USA (California) Exiteloceras vancouverense (83774 83777)
Maastrichtian72.1 - 66.0Nigeria D. hornbyense (82732)
Maastrichtian72.1 - 66.0Mexico (Baja California) Hamites vancouverensis (158099)
Maastrichtian72.1 - 66.0USA (New Jersey) D. draconis (83064)
Early/Lower Maastrichtian70.6 - 66.0Australia (Western Australia) Bostrychoceras indicum (190311) Nostoceras attenuatum (190314)
Early/Lower Maastrichtian70.6 - 66.0USA (California) D. fresnoense, Exiteloceras vancouverense (83776)
Early/Lower Maastrichtian70.6 - 66.0France (Landes) Nostoceras obtusum (214109 214174) Nostoceras schloenbachi (214219)