†family Ptychoceratidae Meek 1876 (ammonite)

Cephalopoda - Ammonitida - Ptychoceratidae

Alternative spelling: Ptychoceratinae

Parent taxon: Ancyloceratoidea according to S. Bersac and D. Bert 2019

See also Förster 1975, Henderson 1990, Kemper 1964, Landra et al. 2000, Reboulet 1996, Szives 2007 and Wright 1952

Sister taxa: Acrioceratidae, Ancyloceratidae, Hemihoplitidae, Heteroceratidae, Himantoceratidae, Labeceratidae, Leptoceratoididae, Paraspiticeras

Subtaxa: Diptychoceras Inaptychoceras Ptychoceras

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Type: Ptychoceras

Ecology: fast-moving nektonic carnivore

Distribution:

• Cretaceous of Angola (1 collection), Antarctica (3), Argentina (1), Australia (1), Canada (5: British Columbia), Colombia (2), the Czech Republic (1), France (8), Georgia (1), Germany (1), Hungary (2), Italy (3), Japan (1), Madagascar (1), Mexico (2), the Russian Federation (1), Spain (2), United States (32: Alaska, California)

Total: 68 collections including 71 occurrences

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