| details |
Late Mesozoic |
|
China |
Feng,S.-N. et al. On the stratigraphic age of the Gaojiping and the Lingxiang Groups. |
1981 |
| details |
Valanginian |
Aptian |
Bulgaria |
Ercegovac,M. et al. Microfloral residues from the Lower Cretaceous of the Stara Planina Montains, Bulgaria. |
1972 |
| details |
Albian |
|
Arctic Ocean |
Korotkevich,V.D. On the palynological complexes of Lower Cretaceous Coal-bearing deposits of the Novosiberian Islands. |
1958 |
| details |
Jurassic |
Early Cretaceous |
Antarctica |
Kamenev,E.N. et al. Metamorphism of sedimentary formations on the Lassiter coast. (In: Antarctic Geoscience. C.Craddock, editor) |
1982 |
| details |
Cretaceous |
|
Alaska |
Shearer,J.C. et al. Delineation of distinctive nature of Tertiary coal beds. |
1995 |