| link
|
From
|
To
|
Geolocation
|
Author - title
|
Year
|
|---|---|---|---|---|---|
| details | Barremian | USSR(Yamalo-Nenets) | Popovicheva,L.V. et al. Stratigraphy and correlation of Cretaceous Petroleum deposits of the Polui-Yamal Region | 1981 | |
| details | Tithonian | Hauterivian | Canada(NWT,Mackenzie) | Fensome,R.A. Miospores from the Jurassic-Cretaceous boundary beds, Aklavik Range, Northwest Territories, Canada. (Incorporating taxonomic reviews of several Groups of Mid-Late Mesozoic miospores) | 1983 |