| original |
Early Valanginian |
Middle Valanginian |
Canada(NWT,Mackenzie) |
McIntyre,D.J. et al. Valanginian miospore and microplankton assemblages from the northern Richardson Mountains, District of MacKenzie, Canada. |
1980 |
| details |
Valanginian |
|
Canada(NWT,Franklin) |
Davies,E.H. The dinoflagellate Oppel-zonation of the Jurassic-Lower Cretaceous sequences in the Sverdrup Basin, Arctic Canada. |
1983 |
| details |
Early Valanginian |
Middle Valanginian |
Canada(NWT,Mackenzie) |
Jan du ChЄne,R.E. et al. New observations on the dinoflagellate cyst genus Kallosphaeridium de Coninck, 1969. |
1984 |
| details |
Nd |
|
Australia(Queensland) |
Jan du ChЄne,R.E. et al. New observations on the dinoflagellate cyst genus Kallosphaeridium de Coninck, 1969. |
1984 |
| details |
Ryazanian |
|
Norway |
Norborg,A.K. et al. Catalogue of Jurassic/Cretaceous fossils and sedimentary rocks from Andиya, northern Norway. Collections in the Paleontological Museum, Oslo, the Bergen Museum, the Tromsи Museum, and the Swedish Museum of Natural History, Stockholm. |
1997 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |