Paleoceanographic proxies that are based on the trace element, isotopic, and ecologic variability of biomineralizers rely on a solid understanding of the controls of biomineral formation and preservation. Over the past several decades, technological advancements have permitted unparalleled improvements in our understanding of biomineralization and the taphonomic processes affecting biominerals, leading to advancements in the application and utility of many paleoceanographic proxies. This session aims to highlight recent advancements in paleoceanographic proxy development and application. We welcome submissions from field based, laboratory culture and fossil studies that advance the utility of paleoceanographic proxies based upon biomineralizers and/or introduce novel paleoceanographic proxies that improve our knowledge of past climate change on all timescales, inform climate modeling efforts, and improve our understanding of future climate change.