Coxall, H.K. & Spezzaferri, S. (2018). Taxonomy, biostratigraphy, and phylogeny of Oligocene Catapsydrax, Globorotaloides, and Protentelloides. Cushman Foundation Special Publication. 46: 79-124.
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Coxall, H.K. & Spezzaferri, S.
2018
Taxonomy, biostratigraphy, and phylogeny of Oligocene Catapsydrax, Globorotaloides, and Protentelloides