Kenneth G. Miller Jan-Feb 2006; Eocene–Oligocene global climate and sea-level changes St. Stephens Quarry, Alabama GSA Bulletin, Rutgers University, NJ [1]
Commissione internazionale di stratigrafia, International Chronostratigraphic Chart, su stratigraphy.org, Unione internazionale di scienze geologiche. URL consultato l'8 marzo 2024.
unibo.it
acnpsearch.unibo.it
Isabella Premoli Silva und David G. Jenkins: Decision on the Eocene-Oligocene boundary stratotype. Episodes, 16(3): 379-382, 1993 ISSN 0705-3797 (WC ·ACNP).
Fritz F. Steininger, M. P. Aubry, W. A. Berggren, M. Biolzi, A. M. Borsetti, J. E. Cartlidge, F. Cati, R. Corfield, R. Gelati, S. Iaccarino, C. Napoleone, F. Ottner, F. Rögl, R. Roetzel, S. Spezzaferri, F. Tateo, G. Villa und D. Zevenboom: The Global Stratotype Section and Point (GSSP) for the base of the Neogene. Episodes, 20(1): 23-28 Beijing 1997 ISSN 0705-3797 (WC ·ACNP).
worldcat.org
Isabella Premoli Silva und David G. Jenkins: Decision on the Eocene-Oligocene boundary stratotype. Episodes, 16(3): 379-382, 1993 ISSN 0705-3797 (WC ·ACNP).
Fritz F. Steininger, M. P. Aubry, W. A. Berggren, M. Biolzi, A. M. Borsetti, J. E. Cartlidge, F. Cati, R. Corfield, R. Gelati, S. Iaccarino, C. Napoleone, F. Ottner, F. Rögl, R. Roetzel, S. Spezzaferri, F. Tateo, G. Villa und D. Zevenboom: The Global Stratotype Section and Point (GSSP) for the base of the Neogene. Episodes, 20(1): 23-28 Beijing 1997 ISSN 0705-3797 (WC ·ACNP).