It is the largest Paleontological Museum in Italy both for its surface area and for the number and importance of its collections (a recent estimate rates it as having about one million pieces). The Museum is arranged in fifteen rooms and divided into four sections: ancient collections, fossilised plants, fossilised vertebrates, rock and invertebrate collections and fossils ordered according to their geographic origin in Italy and abroad. The description is taken from S. M. A. - University Museum System Alma Mater Studiorum University of BolognaThe museum is part of S. M. A. - Sistema Museale d'Ateneo Alma Mater Studiorum Università di Bologna