| details |
Early Jurassic |
|
USSR(Mangyshlak ASSR) |
Amanniyazov,K.N. et al. New data on the study of spore-pollen complexes of Mesozoic deposits of Manghshlak Peninsula |
1990 |
| details |
Bathonian |
|
USSR(Siberia) |
Meledina,S.V. et al. Stratotypes of the Checkurovka Formation, Bathonian-Callovian. (In: Detailed Jurassic and Cretaceous stratigraphy and paleontology of Siberia. V.A.Zakharov, editor) |
1991 |
| details |
Early Bajocian |
|
Russia(Siberia) |
Zakharov,V.A. et al. Boreal Zonal standard and biostratigraphy of the Siberian Mesozic. |
1997 |