†subfamily Pleuronectinae (flatfish)
Actinopteri - Pleuronectiformes - Pleuronectidae
Parent taxon: Pleuronectidae according to L. R. David 1943
Sister taxa: Atheresthes, Evesthes, Glyptocephalus, Hippoglossoides, Lyopsetta, Microstomus, Parophrys, Platichthys, Pleuronectidarum, Pleuronichthys, Solea
Subtaxa: none
Ecology: nektobenthic carnivore
Distribution: found only at Yamane-Tekko Quarry (Oligocene of Japan)