Sites

Introduction to the Sarcopterygii - English
URL: http://www.ucmp.berkeley.edu/vertebrates/sarco/sarcopterygii.html

The name Sarcopterygii (or sometimes Crossopterygii) used to refer only to the fish members of the group, but since it has become clear that the Tetrapoda evolved from sarcopterygian fish, the definition of the group has been expanded. The precise relationships among all the Sarcopterygii are still a matter of debate, and there are many competing hypotheses. The cladogram below represents one such hypothesis.

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Sub-class: Sarcopterygii - English
URL: http://www.sarcopterygii.com/

Research Links.

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Sarcopterygii (The lobe-finned fishes & tetrapods) - English
URL: http://phylogeny.arizona.edu/tree/eukaryotes/animals/chordata/sarcopterygii.html

Cladistic tree based on review in Nelson (1994).

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