Bivalvia - Pectinida - Pectinoidae

Full reference: B. L. Clark and J. W. Durham. 1946. Eocene Faunas from the Department of Bolivar, Colombia. Geological Society of America Memoir 16:1-126

Belongs to Spondylus according to W. P. Woodring 1982

Sister taxa: Spondylus (Spondylus), Spondylus americanus, Spondylus aratus, Spondylus barbatus, Spondylus batequensis, Spondylus bifrons, Spondylus bostrychites, Spondylus buchi, Spondylus calcifer, Spondylus candidus, Spondylus carlosensis, Spondylus castus, Spondylus chipolanus, Spondylus chiriquiensis, Spondylus ciliatus, Spondylus cliffensis, Spondylus colombiensis, Spondylus concentricus, Spondylus crassicosta, Spondylus crassisquama, Spondylus decussatus, Spondylus dumosus, Spondylus fragum, Spondylus gaderopoides, Spondylus gaederopus, Spondylus gumanomocon, Spondylus lamellacea, Spondylus lucasi, Spondylus mimus, Spondylus mucronatus, Spondylus ornatissimus, Spondylus ostreoides, Spondylus perrini, Spondylus princeps, Spondylus pseudoradula, Spondylus radula, Spondylus raoulensis, Spondylus regius, Spondylus rotundatus, Spondylus rugosus, Spondylus scotti, Spondylus sondeianus, Spondylus spectrum, Spondylus striatus, Spondylus tenella, Spondylus tenuispina, Spondylus victoriae, Spondylus wrightianus

Type specimen: UCMP 34916, a shell. Its type locality is U.C. Location S. 8049 (Zone C) - Clark and Durham (1946), which is in an Eocene coastal sandstone/sandstone in Colombia.

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 77.0 x 88.0