Figure 2. Overview of cortical organization in the different amniotes, with inference of an ancestral pattern in stem amniotes. BF: basal forebrain; DC: dorsal cortex; DVR: dorsal ventricular ridge; Hip: hippocampus; LC: lateral cortex; LGE: lateral ganglionic eminence; MC: medial cortex; MGE: medial ganglionic eminence; NC: neocortex; Rh: rhinencephalon (pyriform cortex); Sep: septum; Str: striatum; Wu: Wülst. Adapted from Ref. 2.