original |
Campanian |
|
Canada(Saskatchewan) |
Harker,S.D. Campanian organic-walled microplankton from the Interior Plains of Canada, Wyoming and Texas. |
1977 |
original |
Campanian |
|
Canada(Alberta) |
Harker,S.D. Campanian organic-walled microplankton from the Interior Plains of Canada, Wyoming and Texas. |
1977 |
original |
Campanian |
|
Texas |
Harker,S.D. Campanian organic-walled microplankton from the Interior Plains of Canada, Wyoming and Texas. |
1977 |
original |
Campanian |
|
Wyoming |
Harker,S.D. Campanian organic-walled microplankton from the Interior Plains of Canada, Wyoming and Texas. |
1977 |
details |
Middle Santonian |
Maastrichtian |
Canada(Saskatchewan) |
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 |
Middle Santonian |
Late Santonian |
Canada(Alberta) |
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 |
Middle 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 |
Middle Santonian |
Late Santonian |
North Dakota |
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 Austinian |
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 |
Campanian |
|
Wyoming |
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 |
original |
Early Campanian |
|
Canada(Saskatchewan) |
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 |
original |
Campanian |
|
Canada(Saskatchewan) |
Harker,S.D. et al. Late Cretaceous (Campanian) organic-walled microplankton from Interior Plains of Canada, Wyoming and Texas; Validation of new taxa. |
1991 |
details |
Late Cretaceous |
|
Canada(Saskatchewan) |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |