Elpistostegalia

From Simple English Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Elpistostegalia
Temporal range:
Late Devonian - Present, 385–0 Ma
Panderichthys BW.jpg
Panderichthys
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Eotetrapodiformes
Clade: Elpistostegalia
Camp & Allison, 1961
Type genus
Elpistostege
Westoll, 1938
Subgroups[1]
Synonyms
  • Panderichthyida Vorobyeva, 1989

Elpistostegalia, also known as Panderichthyida, is a type of prehistoric fish which lived about 385 to 374 million years ago.[2]

Why they evolved[change | change source]

A rise in the world's oxygen content caused predatory fish to evolve,[3] and this fish was the most successful.[4]

What they evolved from[change | change source]

Below is a description of their evolutionary family tree.[1]

Eotetrapodiformes

Tristichopteridae Eusthenopteron BW.jpg




Tinirau




Platycephalichthys


Elpistostegalia

Panderichthys Panderichthys BW.jpg





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
















References[change | change source]

  1. 1.0 1.1 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.
  2. Elpistostegidae on the Taxonomicon
  3. Dahl TW, Hammarlund EU, Anbar AD, et al. (October 2010). "Devonian rise in atmospheric oxygen correlated to the radiations of terrestrial plants and large predatory fish". Proc. Natl. Acad. Sci. U.S.A. 107 (42): 17911–5. Bibcode:2010PNAS..10717911D. doi:10.1073/pnas.1011287107. PMC 2964239. PMID 20884852.
  4. Lewis Jr., William M. (1 June 1970). "Morphological Adaptations of Cyprinodontoids for Inhabiting Oxygen Deficient Waters" (PDF). Copeia. 2 (2): 319–326. doi:10.2307/1441653. JSTOR 1441653. Archived from the original (PDF) on 2011-08-13.