†family Massalongiidae (ray-finned fish)
Actinopteri - Acanthuriformes - Massalongiidae
Parent taxon: Acanthuriformes according to J. S. Nelson et al. 2016
See also Bannikov 2014
Sister taxa: Acanthuridae, Luvaridae, Pygaeidae, Sciaenoidei, Zanclidae
Subtaxa: Massalongius
Ecology:
Distribution: found only at Monte Bolca, Pesciara (FMNH collection) (Eocene of Italy)