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Discolithina ovata Levin & Joerger, 1967
Discolithina segmenta Bukry & Percival, 1971
Pontosphaera segmenta (Bukry & Percival, 1971) Knuttel, 1986
Pontosphaera ovata (Levin & Joerger, 1967) Varol, 1989a
Aubry, M-P. 1986b. Validation of new combinations. INA Newsletter 8(2): 91-92.
Bukry, D. & Percival, S. F. 1971. New Tertiary calcareous nannofossils. Tulane Studies in Geology and Paleontology 8: 123-146.
Levin, H. L. & Joerger, A. P. 1967. Calcareous nannoplankton from the Tertiary of Alabama. Micropaleontology 13(2): 163-182.
Knuttel, S. 1986. Calcareous nannofossil biostratigraphy of the Central East Pacific Rise, Deep Sea Drilling Project Leg 92: evidence for downslope transport of sediments. Initial Reports of the Deep Sea Drilling Project 92: 255-290.
Varol, O. 1989a. Calcareous nannofossil study of the central and western Solomon Islands. In: Vedder, J.G. & Bruns, T.R., (Eds.), Geology and offshore resources of Pacific island arc-Solomon Islands and Bougainville, Papua New Guinea Regions: Houston, Texas, Circum-Pacific Council for Energy and Mineral Resources Earth Sciences Series. 12: 239-268.
Discolithina ovata
Levin & Joerger, 1967
Middle Oligocene
Alabama, USA
