Pinning Down the Brunhes Matuyama and Upper Jaramillo Boundaries - a Reconciliation of Orbital and Isotopic Time Scalesv. 109No. 3-4ELSEVIER SCIENCE BV561–572
Tauxe, L., Deino, A. D., Behrensmeyer, Anna K., and Potts, Richard. 1992. "Pinning Down the Brunhes Matuyama and Upper Jaramillo Boundaries - a Reconciliation of Orbital and Isotopic Time Scales." Earth and Planetary Science Letters, 109, (3-4) 561–572.