| link
|
From
|
To
|
Geolocation
|
Author - title
|
Year
|
|---|---|---|---|---|---|
| details | Hauterivian | Barremian | Alaska | Timmcke,T.A. Palynolgoy of the Lower Cretaceous Pebble Shale Unit, Point Barrow, Alaska. | 1981 |
| details | Late Tithonian | England(Sussex) | Norris,G. Palynology of the Jurassic-Cretaceous boundary in Southern England. | 1970 | |
| original | Early Cretaceous | Canada(W.Canada) | Pocock,S.A.J. Microfloral analysis and age determination of strata at the Jurassic-Cretaceous boundary in the Western Canada Plains | 1962 |