| details |
Middle Albian |
Late Albian |
Wyoming |
Tingey,J.C. Palynology of the Lower Cretaceous Bear River Formation in the Overthrust Belt of southwestern Wyoming. |
1978 |
| details |
Campanian |
|
Wyoming |
Harker,S.D. Campanian organic-walled microplankton from the Interior Plains of Canada, Wyoming and Texas. |
1977 |
| 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 |
| details |
Late Cretaceous |
|
Wyoming |
Stone,J.F. Palynology of the Almond Formation, (Upper Cretaceous), Rock Springs Uplift, Wyoming. |
1973 |
| details |
Late Campanian |
|
Wyoming |
Meyers,W.C. Environmental analysis of Almond Formation (Upper Cretaceous), from Rock Springs Uplift, Wyoming. |
1977 |
| details |
Maastrichtian |
|
W.Germany(Niedersachsen) |
Marheinecke,U. Monograph on dinocysts, Acritarch and Chlorophyta of the Maestrichtian of Hemmor (Niedersachsen) |
1992 |
| details |
Zechstein |
|
W.Germany(Hesse) |
Schaarschmidt,F. Spores and Hystrichosphaerids from the Zechstein of Budingen, Wetterau. |
1963 |
| details |
Campanian |
|
Texas |
Harker,S.D. Campanian organic-walled microplankton from the Interior Plains of Canada, Wyoming and Texas. |
1977 |
| 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 |
Paleocene |
|
South Dakota |
Stanley,E.A. Upper Cretaceous and Paleocene plant microfossils and Paleocene dinoflagellates and hystrichosphaerids from northwestern South Dakota. |
1965 |
| details |
Maastrichtian |
|
South America |
Riccardi,A.C. The Cretaceous System of southern South America. |
1988 |
| details |
Ypresian |
Lutetian |
Netherlands |
De Coninck,J. Organic walled microfossils from the Eocene of the Woensdrecht borehole, Southern Netherlands |
1977 |
| details |
Bartonian |
|
Netherlands |
De Coninck,J. Organic walled phytoplankton from the Bartonian and Eo-Oligocene transitional deposits of the Woensdrect borehole, southern Netherlands. |
1986 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Paleozoic |
|
Nd |
Downie,C. et al. On the interpretation and status of some Hystrichosphere genera. |
1963 |
| details |
Senonian |
|
Nd |
Deflandre,G. Groups Incertae Sedis.Hystrichospheres. chitinozoans. |
1952 |
| details |
Senonian |
|
Nd |
Deflandre,G. The problem of Hystrichospheres. |
1947 |