Parent taxon: Dipnoi according to R. van der Laan 2019
See also Nelson et al. 2016 and Sepkoski 2002
Sister taxa: Adelargo, Amadeodipterus, Apatorhynchus, Ballagadus, Cathlorhynchus, Celsiodon, Ceratodonti, Ceratodontidae, Ceratodontiformes, Ceratodontoidei, Chirodipteroidea, Coccovedus, Ctenodontiformes, Ctenodontoidei, Ctenodus, Devonosteus, Diabolepidiformes, Dianodipterus, Dipnoiformes, Dipnorhynchiformes, Dipnorhynchina, Dipnorhynchoidei, Dipteri, Dipterida, Dipteroidei, Dongshanodus, Ferganoceratodus, Gnathorhizidae, Gosfordia, Harajicadipterus, Holodipterida, Jessenia, Limanichthys, Megapleuron, Melanognathus, Neoceratodontidae, Nielsenia, Occludus, Oervigia, Persephonichthys, Pinnalongus, Powichthyidae, Proceratodus, Protopteri, Ptychoceratodontidae, Sagenodontidae, Sinodipterus, Sirenoidei, Speonesydrionina, Speonysedrion, Synthetodus, Tarachomylax, Uranolophina, Uronemoidei, Westollrhynchus, Xylognathus, Youngolepididae
Subtaxa: Chirodipteridae Dipteridae Fleurantiidae Holodipteridae Iranorhynchus Phaneropleuridae Rhynchodipteridae Sponysedrion Stomiahykidae
Ecology:
Distribution:
• Carboniferous of the United Kingdom (1 collection)
• Givetian of the United Kingdom (1), United States (1: Iowa)
• Devonian of Australia (14), Belarus (2), Belgium (2), Canada (3: Alberta, Quebec, Yukon), China (2), Estonia (3), Germany (7), Greenland (2), Iran (2), Latvia (5), Poland (3), the Russian Federation (8), South Africa (1), the United Kingdom (20), United States (7: Colorado, Michigan, Nevada, New York, Pennsylvania)
• Silurian of Norway (1), United States (2: Wisconsin)
Total: 87 collections including 117 occurrences