The term anterior transverse temporal gyrus (TTGa) refers to the more rostral of two or three short oblique convolutions in the inferior wall of the lateral fissure (ltf) of the human ( Carpenter-1983 ). Identified by dissection, they are located on the upper surface of the superior temporal gyrus,(STG) rostral and medial to the planum temporale (PTE). The more caudal convolution is the posterior transverse temporal gyrus (TTGp). Transverse temporal gyri are not seen in the macaque ( Mesulam-1985 ) nor in the smooth cerebral cortex (CTX) of the rat or mouse ( NeuroNames ). Updated 2 Sep 2024.