Eotetrapodiformes

order of tetrapodomorphs

Eotetrapodiformes is a clade of sarcopterygian fish including tetrapods and their ancestors.[1] Eotetrapodiformes is part of the larger clade tetrapodomorpha. But it excludes the basalmost tetrapodomorphs, such as megalichthyiforms.[2]

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

CladogramEdit

Cladogram from Swartz, 2012:[3]



Megalichthyiformes  


Eotetrapodiformes

Tinirau




Platycephalichthys 


Elpistostegalia

Panderichthys 


Stegocephalia


Tiktaalik 



Elpistostege





Elginerpeton 




Ventastega 




Acanthostega  




Ichthyostega  




Whatcheeriidae  




Colosteidae  




Crassigyrinus  




Baphetidae 



Tetrapoda  
















ReferencesEdit

  1. Two groups of stem tetrapods called tristichopterids and elpistostegalids.
  2. 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.
  3. Swartz, B. (2012). "A marine stem-tetrapod from the Devonian of Western North America". PLOS ONE. 7 (3): e33683. Bibcode:2012PLoSO...733683S. doi:10.1371/journal.pone.0033683. PMC 3308997. PMID 22448265.