Didymoceras Hyatt 1900 (ammonite)

Cephalopoda - Ammonitida - Nostoceratidae

Alternative spelling: Nostoceras (Didymoceras)

Synonyms: Didymoceratoides Kennedy and Cobban 1993, Emperoceras Hyatt 1894

Parent taxon: Nostoceratidae according to Y. Shigeta 2016

See also Atabekyan and Khakimov 1976, Ifrim et al. 2015, Kennedy 2000, Kennedy and Bilotte 1995, Kennedy and Cobban 1993, Kennedy and Cobban 1994, Kennedy and Cobban 1997, Kennedy et al. 2000, Kennedy et al. 2000, Kennedy and Summesberger 1999, Morozumi 1985, Reyment 1955, Sepkoski 2002, Wright 1979, Wright et al. 1996 and Zaborski 1985

Sister taxa: Anaklinoceras, Ankinatsytes, Axonoceras, Bostrychoceras, Bostrychoceratinae, Cirroceras, Emperoceratinae, Eubostrychoceras, Exicrioceras, Exiteloceras, Helicoceras, Hyphantoceras, Hyphantoceratinae, Jouaniceras, Morewites, Nostoceras, Pravitoceras, Tridenticeras

Subtaxa: Didymoceras angulatum Didymoceras aurarium Didymoceras awajiense Didymoceras binodosum Didymoceras californicum Didymoceras cheyenense Didymoceras cheyennense Didymoceras cochleatus Didymoceras donezianum Didymoceras draconis Didymoceras fresnoense Didymoceras hidakense Didymoceras hornbyense Didymoceras nebrascense Didymoceras newtoni Didymoceras nicolletii Didymoceras orestimbense Didymoceras platycostatum Didymoceras stevensoni Didymoceras subtuberculatum Didymoceras tenuicostatus Didymoceras tortus Didymoceras tricostatus Didymoceras umbilicatus Didymoceras uncus Didymoceras vancouverensis Didymoceras vespertinus

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Ecology: fast-moving nektonic carnivore

Distribution:

• Cretaceous of Angola (4 collections), Austria (1), France (1), Germany (1), Iraq (2), Japan (5), Mexico (2), Nigeria (2), South Africa (5), Spain (1), Tajikistan (1), Turkey (3), United States (50: Alaska, Arkansas, California, Colorado, Delaware, Montana, Nebraska, New Jersey, New Mexico, Wyoming), Uzbekistan (1)

Total: 79 collections including 97 occurrences

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Specimen images are retrieved through the ePANDDA API.


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