Bivalvia - Pectinida - Pectinoidae

Full reference: W. P. Woodring. 1982. Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (Pelecypods: Propeamussiidae to Cuspidariidae). United States Geological Survey Professional Paper 306(F)

Belongs to Argopecten according to W. P. Woodring 1982

Sister taxa: Argopecten ameleus, Argopecten anteamplicostata, Argopecten demiurgus, Argopecten eboreus yorkensis, Argopecten eccentricus, Argopecten gibbus, Argopecten gilbertharrisi, Argopecten gratus, Argopecten inaequalis, Argopecten insuetus, Argopecten irradians, Argopecten levicostatus, Argopecten parathetidis, Argopecten purpuratus, Argopecten thetidis, Argopecten uselmae, Argopecten venezualanus, Argopecten ventricosus, Argopecten woodringi, Chlamys (Argopecten) agronomica, Chlamys (Argopecten) daideleus, Chlamys (Plagioctenium) reedsi, Chlamys (Plagioctenium) diprosopa, Pecten (Plagioctenium) operculiformis, Pecten (Plagioctenium) callidus, Pecten (Plagioctenium) diminutivus, Pecten (Plagioctenium) evermanni, Pecten (Plagioctenium) cristobalensis, Pecten (Plagioctenium) hakei, Pecten (Plagioctenium) invalidus, Pecten (Plagioctenium) mendenhalli, Pecten (Plagioctenium) subdolus

Type specimen: USNM 647131, a shell

Ecology: facultatively mobile epifaunal suspension feeder

Average measurements (in mm): shell 46.0 x 43.6