Osteichthyes - Guildayichthyiformes
Full reference: R. Lund. 2000. The new Actinopterygian order Guildayichthyiformes from the Lower Carboniferous of Montana (USA). Geodiversitas 22(2):171-206
Parent taxon: Actinopterygii according to R. Lund 2000
See also Long 2011, Nelson 2006 and Nelson et al. 2016
Sister taxa: Actinopteri, Aeduelliformes, Aesopichthyidae, Aetheospondyli, Aetheretmon, Aethocephalichthys, Akanolepis, Ameghinichthys, Anapterus, Aneurolepis, Asarotiformes, Atkinsonella, Australichthys, Avamia, Avonichthys, Baoqingichthys, Beagiascus, Bishofia, Bluefieldius, Bobastraniiformes, Burguklia, Cenechoia paramillensis, Cenechoia sulcata, Charleuxiidae, Chichiidae, Chirothrix, Cladistia, Cuneognathus, Diplospondichthys, Discordichthyidae, Echidnocephalus, Engraulis, Eurekichthyoidei, Eurynotiformes, Eurynotus uspallatensis, Eurypoma, Exocoetoides, Fubarichthyiformes, Guaymayenia, Guntherichthys, Gyrolepidoides cuyanus, Gyrolepidotidae, Histiothrissa, Holuropsis, Isospondyli, Kalops, Kansasiella, Kenderlichthyidae, Kutaichthys, Lepidotus pectoralis, Lepidotus trotti, Lineagruan, Mallotus, Meemannia, Meisenheimichthys, Ministrella, Moythomasiidae, Neochallaia leonensis, Neuburgichthys, Nozamichthys, Ophiopsis lariensis, Opistopteryx, Oxypteriscus, Pachylebias, Palaeobergia, Palaeoneiros, Palaeonisci, Palaeonisciformes, Palaeoniscimorpha, Palaeoniscoidae, Palaeoniscoidea, Paleonisciformes, Paramblypteriformes, Phanerosteonoidei, Phoebeannaia, Pholidophorus dentatus, Pholidophorus lepturus, Pholidophorus vallejensis, Piratata, Polypteri, Protaulopsis, Protospondyli, Pseudoberyx, Rhynchorhinus, Roslerichthys, Salmo, Schizospondylus, Semionotus brevis, Semionotus dubius, Semionotus inornatus, Semionotus mendozaensis, Semionotus unicristatus, Semionotus vallejensis, Spinofacia, Stegotrachelus, Tanyrhinichthys, Tarrasiiformes, Terenolepis, Tetragonopterus, Thryptodus, Trachichthyiformes, Uranichthys, Yaomoshania
Subtaxa: none
Ecology:
Distribution: found only at Posidonia Member, Bearsden locality (Carboniferous of the United Kingdom)