Eotetrapodiformes

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

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 3308997Freely accessible. PMID 22448265.
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