CRETACEOUS -- SOUTH AMERICA References

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Malumián, N., A.M. Báez, 1976, Outline of Cretaceous stratigraphy of Argentina: Evenements de la partie Moyenne du Cretace, Uppsala '75, V. 4, no. XXVII, p. 1-10.

Villamil, T., E.G. Kaufman, 1993, Milankovitch climate cyclicity and its effect on relative sea level changes and organic carbon storage, Late Cretaceous black shales of Colombia and Venezuela: AAPG Bulletin, v. 77, p. 354.

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