The Late Cretaceous and Tertiary palynomorph Proteacidites Cookson ex Couper 1953, is shown to be morphologically inhomogeneous. Two new genera, Propylipollis and Cranwellipollis are proposed, to receive certain species excluded from Proteacidites and Proteacidites is emended. The propriety of ascribing all species of Proteacidites (and the two new genera) to the family Proteaceae is briefly discussed. The natural affinity, as with many dispersed pollen, still remains in doubt.
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Martin et al. (1974) studied this question.