| details |
Maestrichtian |
|
Mexico(Coahuila) |
Rueda-Gaxiola,J. Contribution to the palynologic and petrographic study of the Cretaceous Coal of the Sabina Basin, Coahuila, Mexico |
1967 |
| details |
Middle Miocene |
|
Canada(British Columbia) |
Read,P.B. Geology and industrial minerals of the Tertiary Basins, South-Central British Columbia. Appendix A. Descriptions of fossil localities. |
2000 |
| original |
Rhaetian |
Liassic |
Sweden |
Nilsson,T. On the occurrence of a Mesozoic oil shale in Schonen. |
1958 |
| details |
Rhaetian |
Liassic |
Sweden |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |
| details |
Rhaetian |
Liassic |
Sweden |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |