Invalid subtaxa: Crossopterygia Huxley 1861 [replaced name], Crossopterygidae Huxley 1861 [replaced name], Crossopterygii Huxley 1861 [replaced name]
Full reference: A. S. Romer. 1955. Herpetichthyes, Amphibioidei, Choanichthyes or Sarcopterygii?. Nature 176:126
Parent taxon: Teleostomi according to H. Gadow 1898
See also Ahlberg 1991, Betancur et al. 2013, Brazeau 2005, Chang and Zhu 1993, Clack et al. 2019, Clement 2005, Clement 2006, Clement 2012, Clement and Long 2010, Cope 1887, Daly 1973, Davis et al. 2004, Dineley and Metcalf 1999, Friedman and Coates 2006, Friedman et al. 2007, Friedman and Daeschler 2006, Gardiner 1982, Hay 1902, Heintz 1934, Huxley 1861, Irmis 2005, Jaekel 1911, Johanson et al. 2007, Jordan 1963, Long 2011, Lu and Zhu 2010, Lu et al. 2012, Mann et al. 2017, Martinelli and Forasiepi 2004, Meyer and Zardoya 2003, Miles 1977, Mondéjar‐Fernández et al. 2020, Nelson et al. 2016, Qiao and Zhu 2009, Qiao and Zhu 2015, Romer 1955, Säve-Söderbergh 1934, Schultze 2000, Schultze 2001, Schultze and Reed 2012, Sharp and Clack 2013, Smithson et al. 2016, Thurmond and Jones 1981, Toriño et al. 2021, Woodward 1891, Woodward 1916, Young et al. 2013, Young et al. 1992, Young and Schultze 2005 and Yu 1998
Sister taxa: Lepidopidae, Malacopterygii, Podopterygia, Rhipidopterygia
Subtaxa: Achoania Actinistia Akinetia Amii Belonorhynchi Belonostomi Coelacanthimorpha Coelacanthini Cyclolepidi Dipnoi Dipnomorpha Dipnotetrapodomorpha Eugnathi Guiyu Haplistia Heterocerci Lepidosireniformes Lepidostei Ligulalepis Onychodontia Onychodontida Onychodontiformes Osteolepidae Osteolepidida Osteolepiformes Platysomi Polypterini Psarolepis Ptyctolepis Rhipidistia Rhizodontida Rhizodontiformes Saurodipterini Taxistia Tetrapoda Youngolepis