Reyment, R. A. (1981). The Ostracoda of the Kalambaina formation (Paleocene), northwestern Nigeria. Bulletin of the Geological Institutions of the University of Uppsala. 9: 51-65.
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Reyment, R. A.
1981
The Ostracoda of the Kalambaina formation (Paleocene), northwestern Nigeria
Bulletin of the Geological Institutions of the University of Uppsala