Figure 2 in An unusual new archosauriform from the Middle-Late Triassic of southern Brazil and the monophyly of Doswelliidae

Figure 2. Chronostratigraphical column of the Santa Maria Supersequence showing the Archeopelta-bearing level. Modified from Zerfass et al. (2003) and stages boundary ages after Schoene et al. (2006), Schaltegger et al. (2008) (Triassic–Jurassic boundary), Mundil et al. (1996) (Anisian–Ladinian), Mundil et al. (2004) (Permo–Triassic boundary), and Muttoni et al. (2004) and Furin et al. (2006) for others.