| 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 |
Aalenian |
Callovian |
USSR(Siberia) |
Sarjeant,W.A.S. et al. Jurassic palynomorphs of the Circum-Pacific Region. (In: The Jurassic of the Circum-Pacific. G.E.G Westermann, editor) |
1992 |
| details |
Early Bajocian |
|
Russia(Siberia) |
Zakharov,V.A. et al. Boreal Zonal standard and biostratigraphy of the Siberian Mesozic. |
1997 |