Osteichthyes - Palaeonisciformes
Alternative spelling: Platysomiformes
Full reference: H. Aldinger. 1937. Permische ganoidfische aus Ostgrönland. Meddelelser om Grønland 102(3):1-392
Parent taxon: Palaeonisciformes according to J. S. Nelson 2006
See also Aldinger 1937, Bakaev et al. 2020 and Nelson et al. 2016
Sister taxa: Agecephalichthys, Amblypterina, Arratiaichthys, Atherstoniidae, Blanzychthys, Boreolepidae, Borichthys, Brachypareion, Brazilichthyidae, Browneichthys, Burbonella, Caelatichthys, Canobiidae, Coccolepidae, Cornuboniscus, Cosmolepis, Cosmoptychiidae, Daedalichthys, Daqingshaniscus, Decazella, Dialipina, Dorsolepis, Dorypteroidei, Drydenius, Dwykiidae, Fukangichthys, Gardinerichthys, Gyrolepidoides, Holuridae, Huanghelepis, Igornella, Igornichthyidae, Illiniichthys, Kentuckia, Korutichthys, Letovichthys, Luederia, Mansfieldiscus, Neuburgella, Orvikuina, Osorioichthys, Palaeoniscoidei, Palaeothrissum, Paradrydenius, Paragonatodus, Phanerorhynchidae, Plesiococcolepis, Protamblyptera, Psilichthys, Redfieldioidei, Rhabdolepis, Sakamenichthys, Scanilepididae, Sceletophoridae, Songanella, Tanaocrossus, Tienshaniscus, Trissolepididae, Urosthenes, Westollia, Zaxilepis, Zhongweilepis
Subtaxa: Platysomidae
Ecology: nektonic carnivore
Distribution:
• Jurassic of United States (1: Connecticut collection)
• Triassic of Australia (1), Canada (1: British Columbia), Greenland (1), Madagascar (2), Svalbard and Jan Mayen (3), United States (1: Virginia)
• Tatarian of the Russian Federation (6)
• Permian of Australia (1), Bolivia (1), Brazil (1), China (1), the Czech Republic (1), Germany (10), Greenland (1), Lithuania (1), the Russian Federation (42), South Africa (2), the United Kingdom (6), United States (15: Kansas, Oklahoma, Texas)
• Carboniferous of Canada (1: Nova Scotia), China (1), France (2), South Africa (4), Spain (1), Ukraine (1), the United Kingdom (38), United States (11: Illinois, Kansas, Montana, New Mexico)
Total: 157 collections including 231 occurrences