Rhipidistia
| Rhipidistians Temporal range: Early Devonian - Present, 416–0 Ma | |
|---|---|
 | |
| Ectosteorhachis | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sarcopterygii |
| Clade: | Rhipidistia |
| Subgroups | |
The Rhipidistia, also known as dipnotetrapodomorphs (formally Dipnotetrapodomorpha)[1] are a clade of lobe-finned fishes which include the Tetrapods and lungfishes. Rhipidistia formerly referred to a subgroup of Sarcopterygii consisting of the Porolepiformes and Osteolepiformes, a definition that is now obsolete.[2] However as cladistic understanding of the vertebrates has improved over the last few decades a monophyletic Rhipidistia is now understood to include the whole of Tetrapoda and of the extant lungfishes.
Relationships
The cladogram presented below is based on studies compiled by Philippe Janvier and others for the Tree of Life Web Project,[3] Mikko's Phylogeny Archive[4] and Swartz 2012.[5]
| Sarcopterygii |
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References
- ↑ Joseph S., Nelson (19 May 2006). Fishes of the World. John Wiley & Sons. p. 461. ISBN 978-0-471-75644-6. Retrieved 9 May 2015.
- ↑ "Encyclopedia Britannica". Retrieved 3 April 2014.
- ↑ Janvier, Philippe. 1997. Vertebrata. Animals with backbones. Version 01 January 1997 (under construction). http://tolweb.org/Vertebrata/14829/1997.01.01 in The Tree of Life Web Project, http://tolweb.org/
- ↑ Haaramo, Mikko (2003). "Sarcopterygii". in Mikko's Phylogeny Archive. Retrieved November 4, 2013.
- ↑ 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.