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 |
|
Wyoming |
Farabee,M.J. et al. Stratigraphic palynology of the lower part of the Lance Formation, (Maestrichtian) of Wyoming. |
1986 |