Class Hypostomata Jaekel 1911 (bony fish)
Full reference: O. Jaekel. 1911. Die Wirbeltiere. Eine Übersicht über die Fossilen und Lebenden Formen [The Vertebrates. An Overview of the Fossil and Living Forms] viii-252
Parent taxon: Pisces according to O. Jaekel 1911
Sister taxa: Actinopterygii, Actinopterygii, Andreolepididae, Cephaloxeniformes, Coregonidae, Crenilepis, Cyclotomodon, Dialipiniformes, Ganoidei, Histiothrissinae, Iniomi, Lophosteidae, Naxilepis, Pattonia, Pattonia couttsi, Preophiodon, Sarcopterygii, Sparalepis, Tythonichthys, Argentinoideorum, Otolithopsis, Aspidoganoidei, Teleostomata, Percidarum, Malacostomata, Charitosaurus, Chrondroterygia, Lepidoleprus, Azygostei, Ptilichnus, Rhytiodus, Dipneusta
Subtaxa: Placoidea
Ecology: planktonic suspension feeder