ammonites
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Cratis retiaria Powell 1937 (clam)

Bivalvia - Arcida - Philobryidae

PaleoDB taxon number: 89948

Belongs to Cratis according to H. G. Spencer et al. 2004

Sister taxa: Cratis delicatula, Cratis kanekoi, Cratis ovata, Cratis progressa

Ecology: facultatively mobile infaunal suspension feeder