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The taxonomy, phylogeny and biostratigraphy of Oligocene Globigerina, Globigerinella and the new genus Quiltyella is reviewed. Globigerina and Globigerinella are long-ranging genera that extend into the modern. Globigerina appeared in the middle Eocene and diversified in the early Oligocene to give rise to several geographically wide-ranging and cosmopolitan species. Globigerinella originated and diversified in the early Oligocene and includes both common cosmopolitan species together with rare clavate and digitate species that were previously referred to the genus Protentella Lipps. Based on new wall textural studies we describe a third related genus, Quiltyella Coxall and Spezzaferri n. gen., which is...

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