neopalliumn.

1901 G. E. Smith in Jrnl. Anat. & Physiol. 35 431 It is only one of the three histological formations which constitute the true pallium; and, as it is the latest of these to reach the height of its development, we may call it the ‘new pallium’ or..‘neopallium’, in contradistinction to the ‘old pallium’ of the Sauropsida and earlier Vertebrata, which is chiefly formed of the other two pallial areas.

1907 Arch. Neurol. 3 51 Maps have been obtained of these neopallia which are fairly full.

1907 Arch. Neurol. 3 52 The term neopallium is employed throughout in the sense suggested by Elliot Smith to indicate the variable area intercalated between the ‘basal pallium’ or pyriform lobe and the marginal pallium, or hippocampus.

1922 Glasgow Herald 23 Dec. 4/2 When our ancestors, with their free hands, their enlarged cerebral cortex or neopallium, and their capacity for co-operative action, had resources sufficient to enable them to stand up to Carnivores.., they left the trees and became once more terrestrial.

1948 A. Brodal Neurol. Anat. x. 323 With the development of the neopallium or neo-cortex, the two more primitive areas are finally pushed medially, and in man are found entirely on the medial aspect of the hemisphere.

1973 Gray's Anat. (ed. 35) vii. 921/1 In the course of evolution visual, auditory and other conduction paths have been transferred, through the thalamus, to the pallium of the cerebral hemispheres... Consequently, each cerebral hemisphere enlarges as a result of the formation of an additional region, the neopallium.

1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) xvi. 591 In the hemispheres.., we find, between paleopallium and archipallium, a small area of superficial gray matter of a new type, that of the neopallium.