Amino acid racemization in mono-specific foraminifera from Quaternary deep-sea sediments

► 179 well-dated, mono-specific foraminifera samples were analyzed for D/L Asp & Glu. ► Samples from the Pacific, Atlantic, and Arctic oceans range in age to 1.5 Ma. ► Multiple foraminifera taxa racemize at similar rates (within ∼15%). ► D/L values increase systematically with sample and site temperature. ► D/L values generally conform to model published previously (Kaufman, 2006).