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The taxonomy, biostratigraphy, and phylogeny of Oligocene Subbotina is discussed and reviewed. We include forms that have teeth extending into the umbilicus. A total of nine species are accepted as distinct, namely Subbotina angiporoides (Hornibrook), Subbotina corpulenta (Subbotina), Subbotina eocaena (Gümbel), Subbotina gortanii (Borsetti), Subbotina linaperta (Finlay), Subbotina minima (Jenkins), Subbotina projecta Olsson, Pearson, and Wade n. sp., Subbotina tecta Pearson and Wade, and Subbotina utilisindex (Jenkins and Orr).

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