| details |
Early Cretaceous |
|
Wyoming |
Davis,P.N. Palynology and stratigraphy of the Lower Cretaceous rocks of northern Wyoming |
1963 |
| details |
Late Neocomian |
|
Canada(W.Canada) |
Pocock,S.A.J. Microfloral analysis and age determination of strata at the Jurassic-Cretaceous boundary in the Western Canada Plains |
1962 |
| original |
Neocomian |
Albian |
Maryland |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1962 |
| original |
Neocomian |
Aptian |
Australia |
Cookson,I.C. et al. On Schizosporis, a new form genus from Australian Cretaceous deposits. |
1959 |
| original |
Cenomanian |
|
Australia |
Cookson,I.C. et al. On Schizosporis, a new form genus from Australian Cretaceous deposits. |
1959 |