Children (18 direct children, 20 direct and indirect children):
Delectopecten greenlandicus
Delectopecten vancouverensis
(tree size 1)
Delectopecten zacae
Delectopecten incongruus
Delectopecten bistriatus
Delectopecten vitreus
(tree size 1)
Delectopecten binominatus
Delectopecten arces
Delectopecten tillamookensis
Delectopecten alcocki
Delectopecten fluctuatus
Delectopecten fosterianus
Delectopecten macrocheiricola
Delectopecten musorstomi
Delectopecten polyleptus
Delectopecten fosterianum
Delectopecten gelatinosus
Delectopecten randolphi