Matamales-Andreu et al., 2018 - Aptian ammonoids of Spain

[mhorn]

Matamales-Andreu, R., Moreno-Bedmar, J. A., Martínez, R., Grauges, A., Najarro, M., & Rosales, I. (2018). Review of the late Aptian ammonoids of the Reocín area (Basque-Cantabrian Basin, Cantabria, Spain), stratigraphic implications and correlation to the third-order Ap 4 sequence // Journal of Iberian Geology, 1-11.

https://link.springer.com/content/pdf/1 ... 0071-5.pdf