Abstract

"One new genus and four new species of ephedroid pollen from the Albian-Turonian sequence in the Senegal basin, west Africa, are established. Specimens of the new taxa--Steevesipollenites, n.gen.; S. multilineatus, n.sp. (the type species), S. binodosus, n.sp.; Gnetaceae-pollenites diversus n.sp.; and G. clathratus, n.sp.--reveal morphologic features unknown in Recent Ephedra pollen. The described forms, together with associated ephedroid grains very similar to those from extant Ephedra species, attest to the diversity of Cretaceous gnetalean pollen."

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