The presence of Pappomonas lepida Tangen is demonstrated in South Africa for the first time and its coccoliths shown to be more scale-like at the base than has previously been recognised. Somewhat similar but differently arranged appendages are used as the basis for a new genus Pappomonas, well represented in South Africa but also present in West Greenland. The type species P. flabellifera sp. nov. is described and illustrated with special reference to the protoplasmic appendages and aspects of coccolith structure in both calcified and uncalcified specimens. Some preliminary conclusions on coccolith morphology are outlined but more detailed discussion is deferred until a second species of Pappomonas, so far known only from West Greenland, has been described.
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Manton et al. (1975) studied this question.