†subfamily Polycotyilnae Albright et al. 2007 (plesiosaur)
Reptilia - Sauropterygia - Polycotylidae
Parent taxon: Polycotylidae according to L. B. Albright et al. 2007
Sister taxa: Ceraunosaurus, Cimoliasaurus leucoscopelus, Dolichorhynchops, Edgarosaurus, Eopolycotylus, Georgiasaurus, Manemergus, Pahasapasaurus, Palmulainae, Palmulasaurinae, Piratosaurus, Plesiopleurodon, Polycotylinae, Sulcusuchus, Thililua, Trinacromerum, Polycotylus ichthyospondylus tanais, Polycotylus brevispondylus
Subtaxa: none
Ecology: aquatic carnivore
Distribution: there are no occurrences of Polycotyilnae in the database