Reptilia Linnaeus 1758 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.
see Class Reptilia Linnaeus, 1758
†Parareptilia Olson 1947 [deBraga & Reisz 1996]
see Subclass Parareptilia Olson, 1947
†Procolophonomorpha Romer, 1964
see Order Procolophonomorpha Romer, 1964
†Bolosauria Kuhn 1959 [Modesto, Scott, MacDougall, Sues, Evans & Reisz 2015]
Genus †Erpetonyx Modesto, Scott, MacDougall, Sues, Evans & Reisz, 2015 [monotypic]
†Erpetonyx arsenaultorum Modesto, Scott, MacDougall, Sues, Evans & Reisz, 2015