Bivalvia - Pectinida - Pectinoidae

Full reference: C. J. del Rio. 1992. Middle Miocene bivalves of the Puerto Madryn Formation, Valdes Peninsule, Chubut Province, Argentina (Nuculidae-Pectinidae): Part 1. Palaeontographica Abteilung A 225:1-58

Belongs to Argopecten according to C. J. del Rio 1992

Sister taxa: Argopecten ameleus, Argopecten anteamplicostata, Argopecten demiurgus, Argopecten eboreus yorkensis, Argopecten eccentricus, Argopecten gibbus, Argopecten gilbertharrisi, Argopecten inaequalis, Argopecten insuetus, Argopecten irradians, Argopecten levicostatus, Argopecten nerterus, 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: CPBA 13.788, a shell. Its type locality is PN1 - Puerto Madryn Fm, which is in a Miocene coastal sandstone in the Puerto Madryn Formation of Argentina.

Ecology: facultatively mobile epifaunal suspension feeder

Average measurements (in mm): shell 56.7 x 54.3