| original |
Late Jurassic |
Middle Cretaceous |
China(Chekiang) |
Zhang,L. Mesozoic spores and pollen grains from the Volcanic Clastic sedimentary rocks in Chekiang, with their Stratiraphic significance. |
1978 |
| details |
Neocomian |
Aptian |
China(Heilungkiang) |
Zhang,L. A discussion of palynological characters and geological ages of several new localities in eastern Heilongjiang Province. (In: Fossils from the Middle-Upper Jurassic and Lower Cretaceous in eastern |
1983 |
| details |
Valanginian |
Barremian |
China(Heilungkiang) |
Gang,L. Palaeontology and biostratigraphy of the Lower Cretaceous Qihulin Formation in eastern Heilongjiang, northeastern China. |
2001 |