1. Foraminiferi Padani (Terziaro e Quaternario);AGIP Mineraria,1957
2. La Diatomologia Espan˜ola en los Comienzos del Siglo XX;Azpeitia,1911
3. Benthic foraminifera as environmental indices;Bandy,1967
4. Taxonomic notes on the species figured by H.B. Brady in his Report on the Foraminifera dredged by H.M.S.Challenger during the years 1873–1876;Barker;Soc. Econ. Paleontol. Mineral.,1960
5. Miocene and Pliocene smaller Foraminifera from Papua and New Guinea;Belford;Aust. Bur. Miner. Res., Geol. Geophys., Bull.,1966