Calcidiscus gallagheri

Calcidiscus gallagheri da Gama & Varol, 2013

Broadly elliptical species of Calcidiscus having a strongly elliptical central area. A porous plate spans the central area. The proximal shield is smaller and birefringent.

Calcidiscus gallagheri differs from Calcidiscus tropicus (Kamptner, 1955) Varol (1989) and Calcidiscus macintyrei (Bukry & Bramlette, 1969) Loeblich & Tappan (1978) by being elliptical. It differentiated from Calcidiscus premacintyrei by having a porous plate in the central area whereas it is vacant in the latter species.

Bukry, D. & Bramlette, M. N., (1969): Some new and stratigraphically useful calcareous nannofossils of the Cenozoic. - Tulane Studies in Geology. 7: 131-142.

da Gama, R. O. B. P. & Varol, O., (2013): New Late Oligocene to Miocene Species. - Journal of Nannoplankton Research. 33(1): 1-12.

Kamptner, E., (1955). Fossile Coccolithineen-Skelettreste aus Insulinde. Eine mikropaläontologische Untersuchung. - Verhandelingen der Koninklijke Nederlandse Akademie van Wetenschappen, Afdeling Natuurkunde. ser 2, 50: 1-105.

Loeblich, A. R. & Tappan, H., (1978): The coccolithophorid genus Calcidiscus Kamptner and its synonyms. - Journal of Paleontology. 52: 1390-1392.

Varol, O., (1989): Calcareous nannofossil study of the central and western Solomon Islands. - Circum-Pacific Council for Energy and Mineral Resources Earth Sciences. 239-268.