Placenticeras Meek 1876 (ammonite)

Cephalopoda - Ammonitida - Placenticeratidae

Synonym: Diplacmoceras

Parent taxon: Placenticeratidae according to W. J. Kennedy 2018

See also Cobban and Hook 1983, Cobban and Kennedy 1992, Kennedy 1984, Kennedy 1995, Kennedy and Cobban 1993, Kennedy and Cobban 1994, Kennedy et al. 1997, Kennedy and Gale 2016, Kennedy and Kaplan 1995, Kennedy et al. 2008, Kennedy et al. 2001, Klinger and Kennedy 1989, Matsumoto and Skwarko 1991, Mosavinia et al. 2014, Sepkoski 2002, Summesberger 1979 and Wiedmann 1978

Sister taxa: Gissarites, Hengestites, Hoplitoplacenticeras, Metaplacenticeras, Proplacenticeras, Rapidoplacenticeratinae, Stantonoceras

Subtaxa: Placenticeras bidorsatum Placenticeras californicum Placenticeras cumminsi Placenticeras fritschi Placenticeras grossouvrei Placenticeras kaffrarium Placenticeras kolbajense Placenticeras maherndli Placenticeras mediasiaticum Placenticeras memoriaschloenbachi Placenticeras orbignyanum Placenticeras pacificum Placenticeras paraplanum Placenticeras placenta Placenticeras polyopsis Placenticeras pseudoplacenta Placenticeras sanctaemonicae Placenticeras semiornatum Placenticeras syrtale Placenticeras tamulicum Placenticeras vredenburgi Placenticeras whitfieldi

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Ecology: fast-moving nektonic carnivore

Distribution:

• Cretaceous of Argentina (1 collection), Austria (4), Canada (9: Alberta, British Columbia, Saskatchewan), France (30), Germany (11), India (3), Iran (2), Kazakhstan (2), Mexico (6), Papua New Guinea (2), Poland (2), South Africa (15), Spain (2), United States (110: Alabama, Arizona, Arkansas, California, Colorado, Delaware, Georgia, Kansas, Maryland, Minnesota, Mississippi, New Jersey, New Mexico, North Carolina, South Dakota, Texas, Utah, Wyoming), Uzbekistan (1)

Total: 200 collections including 222 occurrences

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Specimen images are retrieved through the ePANDDA API.


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