| details |
Early Triassic |
|
China(Yunnan) |
Song,Z.-C. et al. Fossil Spores and Pollen of China. Volume 2: The Mezozoic Spores and Pollen. |
2000 |
| details |
Barremian |
|
China(Hopei) |
Smith,J.B. et al. Biostratigraphy and avian origins in northeastern China. (In: New Perspectives on the Origin and Early Evolution of Birds: Proceedings of the International Symposium in Honor of John H. Ostrom. J. Gauthier and L. F. Gall, editors) |
2001 |
| details |
Barremian |
|
China(Liaoning) |
Smith,J.B. et al. Biostratigraphy and avian origins in northeastern China. (In: New Perspectives on the Origin and Early Evolution of Birds: Proceedings of the International Symposium in Honor of John H. Ostrom. J. Gauthier and L. F. Gall, editors) |
2001 |
| details |
Bajocian |
Callovian |
Egypt |
Ibrahim,M.I.A. et al. Palynostratigraphy of Jurrasic to Lower Cretaceous sequences from the Eastern Desert of Egypt. |
2001 |
| details |
Valanginian |
Barremian |
China(Heilungkiang) |
Gang,L. Palaeontology and biostratigraphy of the Lower Cretaceous Qihulin Formation in eastern Heilongjiang, northeastern China. |
2001 |
| details |
Maestrichtian |
|
Romania |
Itterbeeck,J. Van et al. Palynostratigraphy of the Maastrichtian dinosaur- andmammal sites of the Rўul Mare and Barbat Valleys(Haоeg Basin, Romania). |
2005 |