Full reference: A. S. Woodward. 1895. Catalogue of the Fossil Fishes in the British Museum (Natural History), Part III. Catalogue of the Fossil Fishes in the British Museum (Natural History) III:1-544
Parent taxon: Actinopterygii according to A. S. Woodward 1895
See also Hay 1902 and Lambe 1908
Sister taxa: Aesopichthyidae, Aetheospondyli, Aetheretmon, Aethocephalichthys, Akanolepis, Ameghinichthys, Anapterus, Aneurolepis, Apholiformes, Asarotiformes, Atkinsonella, Australichthys, Avamia, Avonichthys, Baoqingichthys, Beagiascus, Bishofia, Bluefieldius, Bobastraniiformes, Burguklia, Charleuxiidae, Chirothrix, Cuneognathus, Daemodontiscus, Diplospondichthys, Discordichthyidae, Echidnocephalus, Eurekichthyoidei, Eurynotiformes, Eurypoma, Exocoetoides, Fubarichthyiformes, Guntherichthys, Gyrolepidotidae, Holuropsis, Isospondyli, Kalops, Kansasiella, Kutaichthys, Lepidotus pectoralis, Lepidotus trotti, Lineagruan, Mallotus, Meemannia, Meisenheimichthys, Ministrella, Moythomasiidae, Neuburgichthys, Nozamichthys, Ophiopsis lariensis, Opistopteryx, Oxypteriscus, Pachylebias, Palaeoneiros, Palaeonisci, Palaeonisciformes, Palaeoniscimorpha, Palaeoniscoidae, Palaeoniscoidea, Paleonisciformes, Paramblypteriformes, Phanerosteonoidei, Phoebeannaia, Pholidophorus lepturus, Piratata, Polypteri, Protaulopsis, Raynerius, Rhynchorhinus, Roslerichthys, Schizospondylus, Semionotus brevis, Semionotus dubius, Semionotus inornatus, Sphyragnathus, Spinofacia, Stambergichthys, Stegotrachelus, Tanyrhinichthys, Terenolepis, Tetragonopterus, Trawdenia, Uranichthys, Yaomoshania
Subtaxa: none
Ecology: planktonic suspension feeder
Distribution: there are no occurrences of Protospondyli in the database