benthic foraminifera Foraminifera 14 Argentina 10 South America 7 Atlantic Ocean 6 Atlantic Ocean (South) 6 Benthic foraminifera 6 paleoenvironment 6 Cretaceous 4 Epistomina 4 Holocene 4 Marine biology 4 Ostracoda 4 Pleistocene 4 Silt 4 benthos 4 fossil record 4 paleoceanography 4 water mass 4 taphonomy 3 Agrio Formation 2 Agrio formation 2 Animalia 2 Benthic microfauna 2 Biodiversity 2 Biostratigraphy 2 Calcareous microfossils 2 Clay 2 Coastal zones 2 Eocene 2