The posterior lobe of cerebellum is the portion of the cerebellum caudal to the primary fissure.
It is sometimes equated to the "neocerebellum", since phylogenetically it is the newest part of the cerebellum. It plays an important role in fine motor coordination, specifically in the inhibition of involuntary movement via inhibitory neurotransmitters, especially GABA.
^Siegel, Allan Siegel, Hreday N. Sapru ; case histories written by Heidi E. (2011). Essential neuroscience (2nd ed. ed.). Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. p. 190. ISBN9780781783835.