Globorotalia truncatulinoides in the Mediterranean Basin during the Middle–Late Holocene: Bio-Chronological and Oceanographic Indicator

The planktonic foraminiferal species Globorotalia truncatulinoides is widely used as a biostratigraphic proxy for the Quaternary in Mediterranean region. High-resolution quantitative studies performed on sediment cores collected central and western Sea evidence significant abundance of G. during Middle Holocene. robust chronological frame allows us to date this bio-event 4.8–4.4 ka Before Present (BP), very close base Meghalayan stage (4.2 BP). As consequence, we propose that can be considered potential marker Middle–Late Holocene subdivision. deep-dwelling foraminifer their distributional pattern provides tool monitor onset regional deep vertical mixing water column. During Holocene, increase phase with end African Humid Period, which marks transition from more humid climate present-day semi-arid climate.