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Blow, W.H., 1969. Late middle Eocene to Recent planktonic foraminiferal biostratigraphy. In Brönnimann, P., and Renz, H.H. (Eds.), Proc. First Int. Conf. Planktonic Microfossils, Geneva, 1967: Leiden (E.J. Brill), 1:199-422.

Kimura, G., Silver, E., Blum, P., et al., 1997. Proc. ODP, Init. Repts., 170: College Station, TX (Ocean Drilling Program).