Acritarch-based chronostratigraphic and radiometric calibration of the Cambrian volcanosedimentary Vallehondo and Playón formations in the Cambrian Ossa-Morena Rift, Spain

1. Palacios, T.
2. Jensen, S.
3. Álvaro, J.J.
4. Santos Zaldeugui, J.F.
5. Eguiluz, L.
6. Corfu, F.
7. Gil Ibarguchi, J.I.