Zur Flora und Fauna der Villafranca-Schichten von Villarroya, Prov. Logrofno/Spanien

Horst Remy
Proceeding from the works of J. F. de Villalta Comella (1952) and R. Brinkmann (1956) near the village of Villarroya (Prov. Logrono), series of strata of the early Viliafranchian are studied specially by pollen-analytical investigations. The pollen-diagram shows a pronounced changing of vegetation that may be regarded as a result of a positive oscillation of climate. In the sequence from the footwall to the hanging-wall, a subdivision in 6 sections can be recognised: Piceetum, Pinetum...