Alkenone producers during late Oligocene–early Miocene revisited

This study investigates ancient alkenone producers among the late Oligocene–early Miocene coccolithophores recorded at Deep Sea Drilling Project (DSDP) Site 516. Contrary to common assumptions, Reticulofenestra was not the most important alkenone producer throughout the studied time interval. The comparison between coccolith species‐specific absolute abundances and alkenone contents in the same sedimentary samples shows that Cyclicargolithus...