| details |
Berriasian |
Valanginian |
USSR |
Fokina,N.I. The Lower Cretaceous of the Regions of Western Central Asian Territories according to palynology. |
1976 |
| details |
Berriasian |
Valanginian |
China(N.China) |
Li,W. et al. The Cretaceous palynofloras and their bearing on stratigraphic correlation in China. |
1994 |
| details |
Berriasian |
Valanginian |
China(N.China) |
Li,W. et al. The Cretaceous palynofloras and their bearing on stratigraphic correlation in China. |
1994 |
| details |
Middle Purbeckian |
Wealden |
England |
Warrington,G. et al. Micropalaeontological biostratigraphy of offshore samples from South-West Britain. |
1977 |