FOSSIL COCCOSPHERES FROM THE K T BOUNDARY SECTION FROM GEULHEMMERBERG, THE NETHERLANDS/

The recent discovery of well preserved, complete spheres of Biantholit hus sparsus in a clay layer from the K/T boundary interval in the Geul hemmerberg section resulted in a search for coccospheres of other taxa . Applying the same new preparation-and SEM techniques, coccospheres o f over 30 Cretaceous and Tertiary species were found; they are illustr ated and briefly described in this paper. Based on the excellent state of preservation of the coccospheres of several Cretaceous species it is suggested that they survived the K/T boundary event(s).