Palynological response to the Upper Maastrichtian climatic changes of the Tremp formation (N. E. Spain)
Keywords:
Paleopalinología, Paleoecología, Límite Cretácico-Paleógeno, Pirineos, Cuenca de TrempAbstract
The Tremp Formation is one of the few records of continental deposits
associated with the Cretaceous/Paleogene boundary in Europe. It outcrops
in the northeast of the Iberian Peninsula and has been extensively studied
mainly for its vertebrate fossil assemblages, as well as macroflora and microflora,
which provide valuable information to understand the ecosystems prior
to the biological crisis that will end the “age of dinosaurs”. In the present
work, the results of the palynological analyses of two Upper Maastrichtian
sites are shown. In addition to corroborating previous dating of the area, a
change in the floras has been detected, which could be associated with the
last Maastrichtian global warming and subsequent cooling. However, new
studies should be carried out to corroborate this hypothesis.
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