00860nam a2200229 i 450099100334542970753620020503190707.0950503s1953 us ||| | eng b10492227-39ule_instEXGIL119240ExLBiblioteca InterfacoltàitaSimpson, George Gaylord3851Life of the past :an introduction to paleontology /by George Gaylord SimpsonNew Haven :Yale University press,1953xii, 198 p. :ill. ;24 cm.Paleontologia.b1049222702-04-1427-06-02991003345429707536LE002 Fondo Brown 5821LE002-6090Nle002-E0.00-no 00000.i1056818927-06-02Life of the past214293UNISALENTOle00201-01-95ma -engus 01