lobulus quadratus

qua·dran·gu·lar lob·ule

the main portion of the superior part of each hemisphere of the cerebellum, corresponding in current terminology to the anterior quadrangular lobule; the hemisphere portions of the culmen (lobules IV and V) of the vermis consist of an anterior part (lobule HIV) and a posterior part (lobule HV); located between the preculminate and primary fissures.

lobulus quadratus

(1) Precuneus [NA6]. 
(2) Quadrangular lobule (of cerebellum); lobulus quadrangularis (cerebellaris).