original |
Campanian |
Maastrichtian |
California |
Mcleroy,C.A. et al. Upper Cretaceous, (Campanian-Maastrichtian), angiosperm pollen from the western San Joaquin Valley, California. |
1970 |
original |
Campanian |
Maastrichtian |
California |
Chmura,C.A. Upper Cretaceous, (Campanian - Maastrichtian), angiosperm pollen from the western San Joaquin Valley, California, USA. |
1973 |
details |
Maastrichtian |
Early Danian |
Tunisia |
M©on,H. Palynologic studies of the Cretaceous - Tertiary boundary interval at El Kep Outcrop, Northwestern Tunisia; Paleogeographic implications. |
1990 |