Bivalvia - Pectinida - Pectinoidae

Full reference: L. G. Hertlein. 1927. Paleontology of the Miocene of Lower California. Proceedings of the Academy of Sciences 16(19):605-647

Belongs to Pecten (Plagioctenium) according to L. G. Hertlein 1927

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 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) evermanni, Pecten (Plagioctenium) cristobalensis, Pecten (Plagioctenium) hakei, Pecten (Plagioctenium) invalidus, Pecten (Plagioctenium) mendenhalli, Pecten (Plagioctenium) subdolus

Type specimen: LSJU 60, a shell. Its type locality is LSJU Loc. 60, Scammon Lagoon, which is in a Miocene marine sandstone in the Isidro Formation of Mexico.

Ecology: facultatively mobile epifaunal suspension feeder

Average measurements (in mm): shell 8.00 x 8.00