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Dextral to sinistral coiling switch in planktic foraminifer Morozovella during the Early Eocene Climatic Optimum

October 2021

Luciani, V., D'Onofrio, R., Dickens, G.R. & Wade, B.S., 2021. Dextral to sinistral coiling switch in planktic foraminifer Morozovella during the Early Eocene Climatic Optimum. Global and Planetary Change, 013634. DOI

Dextral

Cartoons and examples showing sinistral (left-coiled) and dextral (right coiled) specimens of two species of the Paleogene planktonic foraminifera genus Morozovella. Sinistral views (A, C) and dextral views (B, D) of M. Crater. Dextral views (G, I) and sinistral views (H, J) of M. Aragoensis. A major switch from predominantly dextral to sinistral forms occurred at the start of the Early Eocene Climatic Optimum (EECO).