<p>Ceonozoic deep-sea sediment archives from the southwest Pacific have been used to reconstruct regional climatic and environmental changes associated with global warming events from the earliest Eocene to the Last Interglacial. Less attention has been given to the biotic significance of associated changes in microfossil assemblages. Here we report what is currently known of the effects that global warming events have had on regional plankton communities, specifically foraminifera, calcareous nannoplankton, radiolarians and dinoflagellates. We focus on a succession of events representative of different magnitudes of global warming, including the Paleocene-Eocene thermal maximum, early and middle Eocene climatic optima, middle Miocene climatic optimum, mid-Pliocene warm period, and the Last Interglacial. From this study, we hope to establish ways in which the fossil record can be applied to assess the resilience of modern marine plankton communities to current and future global warming.</p>