| original |
Tithonian |
|
Canada(Arctic) |
Davies,E.H. Jurassic and Lower Cretaceous dinoflagellate cysts of the Sverdrup Basin, Arctic Canada; Taxonomy, biostratigraphy, chronostratigraphy. |
1979 |
| details |
Late Kimmeridgian |
Portlandian |
Canada(Arctic) |
Tan,J.T. et al. Oxfordian-Kimmeridgian dinoflagellate assemblage, Ringes Formation, Arctic Canada. |
1978 |
| details |
Early Jurassic |
Early Cretaceous |
Canada(NWT,Mackenzie) |
Brideaux,W.W. Taxonomy of Upper Jurassic -Lower Cretaceous microplankton from the Richardson Mountains, District of MacKenzie, Canda. |
1977 |
| details |
Oxfordian |
Early Kimmeridgian |
Australia(W.Australia) |
Brideaux,W.W. Taxonomy of Upper Jurassic -Lower Cretaceous microplankton from the Richardson Mountains, District of MacKenzie, Canda. |
1977 |