The Earth's magnetic field prior to the Cretaceous Normal Superchron: New palaeomagnetic results from the Alto Paraguay Formation

por Goguitchaichvili, A., Cervantes Solano, M., Camps, P., Sánchez Bettucci, L., Mena, M., Trindade, R., Aguilar Reyes, B., Morales, J., Lopez Loera, H.