algae, Apennines, arenite, Aveto Unit, Aveto Valley, biostratigraphy, Cenozoic, clastic rocks, Europe, Italy, Liguria Italy, lithostratigraphy, lower Oligocene, microfossils, modal analysis, nannofossils, Northern Apennines, Oligocene, Paleogene, petrography, Plantae, sedimentary rocks, Southern Europe, tectonics, Tertiary, Tuscany Italy
GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by CNR, Comitato Scienze Geologiche e Minerarie, Rome, Italy
