Full reference: E. D. Cope. 1887. Zittel's Manual of Palaeontology. The American Naturalist 21(11):1014-1019
Parent taxon: Sarcopterygii according to H.-P. Schultze 2000
See also Ahlberg 1991, Cope 1887, Daly 1973, Dineley and Metcalf 1999, Hay 1902, Jordan 1963 and Moloshnikov 2007
Sister taxa: Achoania, Actinistia, Actinistia, Akinetia, Dipnomorpha, Dipnotetrapodomorpha, Guiyu, Lepidosireniformes, Ligulalepis, Onychodontia, Onychodontida, Osteolepidida, Psarolepis, Ptyctolepis, Rhizodontida, Tetrapoda, Haplistia, Amii, Platysomi, Polypterini, Heterocerci, Belonostomi, Eugnathi, Cyclolepidi, Taxistia, Saurodipterini, Osteolepidae, Lepidostei, Coelacanthini, Belonorhynchi
Subtaxa: Grenfellia Osteolepidoidea Panderichthyida
Ecology: planktonic suspension feeder