Distribution maps of colubroidean records in the Eocene and Oligocene. Early Eocene: Thaumastophis missiaeni and Procerophis sahnii (Ypresian of India; Rage et al., 2008); Colubroidea indet. (Ypresian of India; Rage et al., 2003). Middle Eocene: Colubroidea incertae sedis (Lutetian of Namibia; Rage et al., 2013). Late Eocene: Renenutet enmerwer (Priabonian of Egypt; McCartney and Seiffert, 2015); Colubroidea indet. (Bartonian of Myanmar; Head et al., 2005); Colubroidea indet. (Priabonian of Thailand; Rage et al., 1992); Colubroidea indet. (Priabonian of U.S.A.; Smith, 2013); Vectophis wardi (Priabonian of England; Rage and Ford 1980); Nebraskophis sp. (Priabonian of U.S.A.; Parmley and Holman, 2003). Oligocene: Elapidae indet. (Chattian of Tanzania; McCartney et al., 2014); Coluber cadurci (Rupelian of France; Rage, 1974); Texasophis galbreathi (Rupelian of U.S.A.; Holman, 1984).