†family Ioscionidae (perch-like fish)
Actinopteri - Perciformes - Ioscionidae
Parent taxon: Percoidei according to H. L. Fierstine et al. 2012
See also David 1943
Sister taxa: Apolectidae, Blotichthys, Bradyurus, Cepolidae, Chilodipteridae, Dules, Enoplosus, Ephippididae, Frigoichthys, Frippia, Gillidia, Jimtylerius, Maenidae, Malacopygaeus, Montepostalia, Oliganodon, Parapelates, Pavarottia, Pelates, Perca, Percidae, Percoidae, Platacidae, Pomadasyidae, Portentosoceros, Pseudopriacanthidae, Pygaeus, Sparoidea, Squamibolcoides, Symphysanodontidae, Veronabrax, Voltamulloides
Subtaxa: Ioscion
Ecology: nektonic carnivore
Distribution: found only at Lompoc Quarry (Miocene of California)