Data from: Eighty-five million years of Pacific Ocean gyre ecosystem structure: long-term stability marked by punctuated change

Elizabeth Sibert, Richard Norris, Jose M. Cuevas, Lana G. Graves & Jose Cuevas
While the history of taxonomic diversification in open ocean lineages of ray-finned fish and elasmobranchs is increasingly known, the evolution of their roles within the open ocean ecosystem remains poorly understood. To assess the relative importance of these groups through time, we measured the accumulation rate of microfossil fish teeth and elasmobranch dermal denticles (ichthyoliths) in deep-sea sediment cores from the North and South Pacific gyres over the past 85 million years (Myr). We find...
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