Family Ptychomyinae Keen 1969 (clam)

Bivalvia - Carditida - Crassatellidae

Alternative spelling: Ptychomyidae

Parent taxon: Crassatellidae according to J. G. Carter et al. 2011

See also Nevesskaja 2009 and Vokes 1980

Sister taxa: Anthonya, Crassatella, Crassatellinae, Eucrassatella, Scambulinae, Spissatella

Subtaxa: Ptychomya

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Ecology: facultatively mobile shallow infaunal suspension feeder

Distribution:

• Cretaceous of Argentina (26 collections), Chile (1), France (2), Italy (1), Japan (7), Mexico (1), Switzerland (2), Tanzania (2), Trinidad and Tobago (1), the United Kingdom (1)

• Jurassic of Chile (1), Mexico (1), United States (1: Texas)

Total: 47 collections including 49 occurrences

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