†order Onychodontiformes (lobe-finned fish)

Osteichthyes - Onychodontiformes

Synonym: Struniiformes

Parent taxon: Sarcopterygii according to A. Mann et al. 2017

See also Johanson et al. 2007, Long 2011 and Lu and Zhu 2010

Sister taxa: Achoania, Akinetia, Coelacanthimorpha, Crossopterygii, Dipnoi, Dipnotetrapodomorpha, Guiyu, Lepidosireniformes, Ligulalepis, Onychodontia, Osteolepiformes, Psarolepis, Rhipidistia, Rhizodontida, Youngolepis

Subtaxa: Bukkanodus Onychodontidae

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• Carboniferous of United States (1: West Virginia collection)

• Devonian of Australia (3), Canada (1: Ontario), China (1), the Russian Federation (1), United States (1: Iowa)

Total: 8 collections each including a single occurrence

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