| details |
Middle Albian |
Late Albian |
Canada(Alberta) |
Brideaux,W.W. Palynology of the Lower Colorado Group, central Alberta, Canada. I. Introductory remarks. Geology and microplankton studies. |
1971 |
| details |
Aptian |
Middle Albian |
Canada(NWT,Mackenzie) |
Brideaux,W.W. et al. Miospores and microplankton from Aptian-Albian rocks along Horton River, District of MacKenzie |
1975 |
| details |
Early Ordovician |
Middle Ordovician |
Sweden |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |
| details |
Early Ordovician |
Middle Ordovician |
Sweden |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |
| details |
Early Ordovician |
Middle Ordovician |
Sweden |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |