†Cryptomya quadrata Arnold 1909 (softshell clam)
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Full reference: R. Arnold. 1909. Paleontology of the Coalinga District, Fresno and Kings Counties, California. United States Geological Survey Bulletin 396:1-173
Belongs to Cryptomya according to C. E. Weaver 1942
See also Clark and Arnold 1923 and Grant, IV and Gale 1931
Sister taxa: Cryptomya californica, Cryptomya washingtoniana, Mya (Cryptomya) incognita
Subtaxa: Cryptomya quadrata vancouverensis
Type specimen: USNM 165525, a shell
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Pliocene of United States (4: California collections)
• Oligocene of Canada (1: British Columbia)
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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