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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]

Eotetrapodiformes
Temporal range: Middle Devonian–Recent
Platycephalichthys.jpg
Skull of the tristichopterid Platycephalichthys in CosmoCaixa Barcelona
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Tetrapodomorpha
Clade: Eotetrapodiformes
Coates & Friedman, 2010
Subgroups

Cladogram from Swartz, 2012:[2]

Megalichthyiformes Gogonasus BW.jpg

Eotetrapodiformes

Tinirau

Platycephalichthys

Elpistostegalia

Panderichthys Panderichthys BW.jpg

Stegocephalia

Tiktaalik Tiktaalik BW.jpg

Elpistostege

Elginerpeton Elginerpeton BW.jpg

Ventastega

Acanthostega Acanthostega BW.jpg

Ichthyostega Ichthyostega BW.jpg

Whatcheeriidae Pederpes22small.jpg

Colosteidae Greererpeton BW.jpg

Crassigyrinus Crassigyrinus BW.jpg

Baphetidae

Tetrapoda Seymouria BW.jpg

ReferencesEdit

  1. ^ Coates, M.I.; Friedman, M. (2010). "Litoptychus bryanti and characteristics of stem tetrapod neurocrania". In Elliot, D.K.; Maisey, J.G.; Yu, X.; Miao, D. (eds.). 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.