Sarcopterygii - Dipnoi - Speonesydrionidae
Full reference: K. S. W. Campbell and R. E. Barwick. 1990. Paleozoic dipnoan phylogeny: functional complexes and evolution without parsimony. Paleobiology 16(2):143-169
Parent taxon: Dipnoi according to R. R. Reisz et al. 2004
See also Campbell and Barwick 1990 and Long et al. 1994
Sister taxa: Adelargo, Amadeodipterus, Apatorhynchus, Ballagadus, Cathlorhynchus, Celsiodon, Ceratodonti, Ceratodontidae, Ceratodontoidei, Chirodipteroidea, Coccovedus, Ctenodontiformes, Ctenodontoidei, Ctenodus, Devonesteus, Devonosteus, Diabolepidiformes, Dianodipterus, Dipnoiformes, Dipnorhynchiformes, Dipnorhynchina, Dipnorhynchoidei, Dipteri, Dipterida, Dipteriformes, Dipteroidei, Dongshanodus, Ferganoceratodus, Gnathorhizidae, Gosfordia, Harajicadipterus, Holodipterida, Jessenia, Limanichthys, Megapleuron, Melanognathus, Neoceratodontidae, Nielsenia, Occludus, Oervigia, Persephonichthys, Pinnalongus, Proceratodus, Protoceratodontidae, Protopteri, Ptychoceratodontidae, Rhinodipteridae, Sagenodontidae, Sinodipterus, Sirenoidei, Speonesydrionina, Speonysedrion, Synthetodus, Tarachomylax, Uranolophina, Uronemoidei, Westollrhynchus, Xylognathus
Subtaxa: Ichnomylax Speonesydrion
Ecology:
Distribution:
• Devonian of Australia (2 collections), the Russian Federation (1)
Total: 3 collections each including a single occurrence