The sister group of organism A is B. The sister group of the clade B+A, is C.
- ^ Eernisse, D.J. "Introduction to phylogeny: what is a sister taxon?". Biology 404 - Evolution. Department of Biological Science, California State University, Fullerton. Retrieved 4 January 2012.
- Sister group. (2015, December 18). Wikipedia, The Free Encyclopedia. Retrieved 16:10, May 7, 2017 from https://simple.wikipedia.org/w/index.php?title=Sister_group&oldid=5284012.
|This article is part of Project Evolution, a All Birds project that aims to write comprehensive articles on each evolutionary term related to birds.|
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