Placodermi - Phlyctaeniiformes - Homostiidae
Alternative spelling: Homosteidae
Parent taxon: Brachythoraci according to R. van der Laan 2019
See also Denison 1975, Denison 1978, Denison 1984 and Vaškaninová and Kraft 2014
Sister taxa: Aspinothoracidi, Beyrichosteus, Brachydeiroidea, Buchanosteidae, Buchanosteoidea, Coccosteoidea, Coccosteomorphi, Dinichthyoidea, Doseyosteus, Gemuendenaspidae, Heterosteoidea, Homosteoidea, Maideria, Pachyosteomorphi, Parabuchanosteidae
Subtaxa: Angarichthys Antineosteus Burrinjucosteus Cathlesichthys Cavanosteus Dhanguura Euleptaspis Goodradigbeeon Homostius Lophostracon Luetkeichthys Tityosteus
Ecology: nektonic carnivore
Distribution:
• Givetian of the United Kingdom (1 collection)
• Devonian of Australia (6), Canada (1: Manitoba), Czechia (1), Estonia (6), Germany (3), Greenland (1), Latvia (5), Morocco (1), Svalbard and Jan Mayen (1), the United Kingdom (7)
Total: 33 collections including 36 occurrences