Eotetrapodiformes

Eotetrapodiformes Temporal range: Middle Devonian–Recent PreЄ Є O S D C P T J K Pg N
Skull of the tristichopterid Platycephalichthys in CosmoCaixa Barcelona
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Tetrapodomorpha
Clade:	Eotetrapodiformes Coates & Friedman, 2010
Subgroups
†Tinirau †Platycephalichthys Elpistostegalia

Eotetrapodiformes is a clade of sarcopterygian fish including tetrapods (four-limbed vertebrates) and their immediate ancestors, two groups of stem tetrapods called tristichopterids and elpistostegalids. Eotetrapodiformes is part of the larger clade Tetrapodomorpha, but exclude the basalmost tetrapodomorphs, such as osteolepiforms.^[1]

Cladogram from Swartz, 2012:^[2]

	Megalichthyiformes Eotetrapodiformes Tinirau Platycephalichthys Elpistostegalia Panderichthys Stegocephalia Tiktaalik Elpistostege Elginerpeton Ventastega Acanthostega Ichthyostega Whatcheeriidae Colosteidae Crassigyrinus Baphetidae Tetrapoda

References

1. Coates, M.I.; Friedman, M. (2010). "Litoptychus bryanti and characteristics of stem tetrapod neurocrania". In Elliot, D.K.; Maisey, J.G.; Yu, X.; and Miao, D. Morphology, Phylogeny and Paleobiogeography of Fossil Fishes. Pfeil. pp. 389–416. ISBN 978-3-89937-122-2.
2. Swartz, B. (2012). "A marine stem-tetrapod from the Devonian of Western North America". PLoS ONE 7 (3): e33683. doi:10.1371/journal.pone.0033683. PMC 3308997. PMID 22448265.