Keywords: Cretaceous delta O-18 isotopic ratio.PNG en Cretaceous temperature curves derived from oxygen delta O-18 isotopic ratio a benthic foraminifera; b planktic foraminifera; c phosphatic fish remains; d high-latitude carbonates data from a Douglas R G Woodruff F 1981 Deep sea benthic foraminifera In The Sea Vol 7 C Emiliani ed Wiley-Interscience New York b Douglas R G Savin S M 1978 Oxygen isotopic evidence for the depth stratification of Tertiary and Cretaceous planktic foraminifera Mar Micropaleontol 3 175 “196 c-d Kolodny Y Raab M 1988 Oxygen Isotopes in Phosphatic Fish Remains from Israel Paleothermometry of Tropical Cretaceous and Tertiary Shelf Waters Paleogeogr Paleoclimatol Paleoecol 64 59-67 Own Antonov 05/06/2009 Climatological diagrams |