(ăr″kĭ-păl′ē-ŭm)
[Pronunciation]
[″ + L. pallium, a cloak]

Areas of the cerebral hemispheres that, along with the paleopallium, are sometimes called the rhinencephalon.
The archipallium comprises the hippocampus, the dentate gyrus, the fasciolar gyrus, and the supracallosal gyrus (induseum griseum)