Kompletter Absatz nach: Everett C. Olson: The Family Diadectidae and its Bearing on the Classification of Reptiles. Fieldiana Geology. Bd. 11, Nr. 1, 1947, doi:10.5962/bhl.title.3579, S. 43 ff.
Michael J. Benton: Phylogeny of the Major Tetrapod Groups: Morphological Data and Divergence Dates. Journal of Molecular Evolution. Bd. 30, Nr. 5, 1990, S. 409–424, doi:10.1007/BF02101113.
Linda A. Tsuji, Johannes Müller: Assembling the history of the Parareptilia: phylogeny, diversification, and a new definition of the clade. Fossil Record. Bd. 12, Nr. 1, 2009, S. 71–81, doi:10.1002/mmng.200800011.
Johannes Müller, Robert R. Reisz: The Phylogeny of Early Eureptiles: Comparing Parsimony and Bayesian Approaches in the Investigation of a Basal Fossil Clade. Systematic Biology. Bd. 55, Nr. 3, 2006, S. 503–511, doi:10.1080/10635150600755396.