[1] We report direct δ44Ca-temperature calibration on cultured and fossil calcite foraminifera, showing that Ca isotopes are potentially a new proxy for past sea surface temperatures (SST). Samples have been analyzed using a 43Ca-48Ca double spike and

[1] Laser–ablation inductively coupled plasma–mass spectrometry microanalyses of Mg/Ca across individual final chambers of three planktonic foraminifera species, Globigerinoides ruber, G. sacculifer, and Pulleniatina obliquiloculata, reveal significant

In the central Red Sea the planktic foraminifer Globigerinoides sacculifer (Brady) lives in the upper 80 m of the water column and depth preferences for different size classes could clearly be established. Reproduction takes place at full moon, at about

The planktonic foraminiferGlobigerinoides sacculifer (Brady) was maintained in the laboratory under different temperature (19.5–29.5°C) and salinity (33 and 36‰) regimes. The light and feeding conditions were adjusted to the open ocean environment. The

The extant morphospecies of the Trilobatus sacculifer plexus (T. sacculifer, T. quadrilobatus, T. immaturus and T. trilobus) have widespread biogeographical distributions and long stratigraphical ranges, and are thus routinely utilized in palaeoceanographical