Parent taxon: Actinopteri according to R. Lund and C. Poplin 2002
See also Jordan 1963 and Nelson et al. 2016
Sister taxa: Aeduelliformes, Amphicentriformes, Anaglyphus, Angatubichthys, Bethesdaichthys, Blourugia, Discordichthyiformes, Docopteri, Dwykiidae, Frederichthys, Inichthyidae, Kenderlichthyidae, Kompasia, Lanarkichthys, Limnomis, Lysopteri, Melanecta, Merospondyli, Mesichthyes, Moythomasia, Nematoptychiidae, Palaeobergiidae, Palaeophoxinus, Paphosisciformes, Phthinobranchii, Plectospondyli, Pseudohaplolepis, Scanilepidiformes, Teleosteomorpha, Westlepis, Woodichthys
Subtaxa: Apholidotos Paratarrasius
Type: Tarrasius
Ecology: planktonic suspension feeder
Distribution:
• Carboniferous of United States (9: Montana collections)
Total: 9 collections including 13 occurrences