neocerebellum

noun

neo·​cer·​e·​bel·​lum -ˈbel-əm 

plural neocerebellums or neocerebella -ˈbel-ə 

: the phylogenetically youngest part of the cerebellum associated with the cerebral cortex in the integration of voluntary limb movements and comprising most of the cerebellar hemispheres and the superior vermis compare paleocerebellum