Foraminifera source request

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Spezzaferri, S., Coxall, H.K., Olsson, R.K., Hemleben, C. (2018). Taxonomy, biostratigraphy, and phylogeny of Oligocene Globigerina, Globigerinella, and Quityella n. gen. Cushman Foundation Special Publication. 46: 179-214.