Robuta

https://www.usgs.gov/publications/calcareous-nannofossils-and-planktic-foraminifers-enewetak-atoll-western-pacific-ocean Calcareous nannofossils and planktic foraminifers from Enewetak Atoll, western Pacific Ocean | U.S.... No abstract available. https://pure.psu.edu/en/publications/calcareous-nannofossils-across-the-cretaceoustertiary-boundary-si/fingerprints/ Calcareous nannofossils across the Cretaceous/Tertiary boundary, Site 761, northwest Australian... across cretaceous https://kuscholarworks.ku.edu/entities/publication/b43e07f8-4308-42c5-b43b-2f122998583f Coccoliths and related calcareous nannofossils from the Yazoo Formation (Jackson, late Eocene) of... https://ltu.diva-portal.org/smash/record.jsf?pid=diva2%3A976633 Ranking of differential dissolution of terminal Cretaceous calcareous nannofossils using a... ranking differential dissolution terminal cretaceous