| original |
Cenomanian |
|
England(Surrey) |
Davey,R.J. Non-calcareous microplankton from the Cenomanian of England, Northern France and North America. Part 2. |
1970 |
| original |
Cenomanian |
|
England(Isle of Wight) |
Davey,R.J. Non-calcareous microplankton from the Cenomanian of England, Northern France and North America. Part 2. |
1970 |
| original |
Cenomanian |
|
France |
Davey,R.J. Non-calcareous microplankton from the Cenomanian of England, Northern France and North America. Part 2. |
1970 |
| original |
Albian |
|
Canada(Saskatchewan) |
Davey,R.J. Non-calcareous microplankton from the Cenomanian of England, Northern France and North America. Part 2. |
1970 |
| details |
Campanian |
|
Canada(Manitoba) |
Harker,S.D. Campanian organic-walled microplankton from the Interior Plains of Canada, Wyoming and Texas. |
1977 |
| details |
Campanian |
|
Texas |
Harker,S.D. Campanian organic-walled microplankton from the Interior Plains of Canada, Wyoming and Texas. |
1977 |
| details |
Middle Campanian |
Late Campanian |
Canada(Manitoba) |
Harker,S.D. et al. Late Cretaceous (Campanian) organic-walled microplankton from the interior plains of Canada, Wyoming and Texas; biostratigraphy, palaeotology and palaeoenvironmental interpretation. |
1990 |
| details |
Late Tayloran |
|
Texas |
Harker,S.D. et al. Late Cretaceous (Campanian) organic-walled microplankton from the interior plains of Canada, Wyoming and Texas; biostratigraphy, palaeotology and palaeoenvironmental interpretation. |
1990 |
| details |
Early Cenomanian |
Middle Cenomanian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Cretaceous |
|
England |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |