Brönnimann, P.; Whittaker, J. E. (1991). On minute planktonic foraminifera from the lower Pliocene of southern Tuscany, central Italy, and from the Oligocene of the southwest Pacific. Revue de Paléobiologie, Genève. 10: 115-122.
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Brönnimann, P.; Whittaker, J. E.
1991
On minute planktonic foraminifera from the lower Pliocene of southern Tuscany, central Italy, and from the Oligocene of the southwest Pacific