borehole Argentina 12 palynology 6 Atlantic Ocean 4 Breakout 4 Central andes 4 Chitinozoa 4 Cretaceous 4 Cura 4 Devonian 4 Dikes 4 Eocene 4 Grandispora 4 Neuquen Basin 4 Paleocene 4 Retroarc 4 Stress 4 Verrucosisporites 4 basin evolution 4 biostratigraphy 4 bitumen 4 dike 4 microplankton 4 new species 4 spore 4 stress field 4 structural geology 4 taxonomy 4 uncertainty analysis 4 Acritarcha 2