Class Reptilia Linnaeus, 1758 - reptiles Subclass Lepidosauria Duméril & Bibron, 1839 Order †Eosuchia Broom, 1914 see Clade Eosuchia Broom 1914 [Laurin 1991] Suborder †Champsosaurida Family †Pachystropheidae Kuhn, 1961