Bramlette, M. N.; Sullivan, F. R. (1961). Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology. 7(2): 129-174, 14 plates.
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Bramlette, M. N.; Sullivan, F. R.
1961
Coccolithophorids and related nannoplankton of the Early Tertiary in California