†Cyclinella subquadrata quitana Olsson 1922 (venus clam)
Bivalvia - Cardiida - Veneridae
Full reference: A. A. Olsson. 1922. The Miocene of Northern Costa Rica. Bulletins of American Paleontology 9(39):1-309
Belongs to Cyclinella subquadrata according to A. A. Olsson 1922
Sister taxa: none
Ecology: facultatively mobile infaunal suspension feeder
Distribution: found only at Quintana Creek (Pliocene of Costa Rica)