1. Planktonic foraminifera and biostratigraphy of some Neogene formations, northern Florida and Atlantic Coastal Plain;Akers;Tulane Stud. Geol. Paleontolog.,1972
2. Planktonic foraminifera in western Emily Pliocene (North Italy);Barbieri,1969
3. Comments on some Pliocene stages and on the taxonomy of a few species ofGloborotalia;Barbieri;L'Ateneo Parmense, Acta Nat.,1971
4. La serie stratigraphique du Messinien au Calabrien dans la valle´e du T. Crostolo (Reggio Emilia-Italie Sept.);Barbieri;Mem. Soc. Ital. Sci. Nat., Milano,1967
5. Calcareous nannoplankton from the Upper Miocene (Messinian) of the Crostolo Torrent (W. Emily);Barbieri;L.Ateneo Parmense, Acta Nat.,1974