†family Amphistiidae Boulenger 1902 (flatfish)
Osteichthyes - Pleuronectiformes - Amphistiidae
Parent taxon: Pleuronectiformes according to R. van der Laan 2019
See also Bannikov 2014, Blot 1969, Carnevale et al. 2014 and Jordan 1963
Sister taxa: Achiurus, Chibapsetta, Clidoderma, Eobothus, Eopsetta, Heteronectes, Imhoffius, Isopsetta, Limanda, Monochirus, Pegusa, Pleuronectoidea, Pleuronectoidei, Psettodoidei, Soleoidei, Turahbuglossus
Subtaxa: Amphistium
Ecology: nektobenthic carnivore
Distribution: found only at Monte Bolca, Pesciara (general) (Eocene of Italy)