The term area 36 of Brodmann refers to the ectorhinal area of the cytoarchitecturally defined temporal region of cerebral cortex in the human. With its medial boundary corresponding approximately to the rhinal sulcus it is a rostral extension of the lingual gyrus ( Brodmann-1909 located in the fusiform gyrus ( Crosby-1962 ).. Cytoarchitecturally it is bounded laterally and caudally by the area 20 of Brodmann (human), medially by the perirhinal area 35 and rostrally by the area 38 of Brodmann (human) ( Brodmann-1909 ). While Brodmann did not find area 36 sufficiently differentiated in the guenon, an Old World monkey similar to the macaque, to report, he did observe it in the marmoset, a New World species and the lemur, a prosimian ( Brodmann-1909 )