| details |
Middle Albian |
Early Cenomanian |
Maryland |
Hickey,L.J. et al. Early Cretaceous fossil evidence for angiosperm evolution. |
1977 |
| details |
Middle Albian |
Late Albian |
Delaware |
Doyle,J.A. Spores and pollen |
1977 |
| details |
Late Albian |
Early Cenomanian |
Delaware |
Doyle,J.A. Spores and pollen |
1977 |
| details |
Middle Albian |
Early Cenomanian |
Delaware |
Doyle,J.A. Patterns of evolution in early angiosperms. (In:Patterns of evolution, as illustrated by the fossil record. A.Hallam, editor) |
1977 |
| details |
Cretaceous |
|
West Virginia |
Gillespie,W.H. et al. Plant fossils of West Virginia. |
1978 |
| details |
Late Albian |
Early Cenomanian |
Maryland |
Drinnan,A.N. et al. Angiosperm flowers and Tricolpate pollen of Buxaceous affinity from the Potomac Group (Mid-Cretaceous) of eastern North America |
1991 |
| details |
Middle Albian |
Late Albian |
Canada(Alberta) |
Song,Z.-C. et al. Fossil Spores and Pollen of China. Volume 1: The Late Cretaceous and Tertiary Spores and Pollen. |
1999 |
| details |
Cenomanian |
Oligocene |
China(N.China) |
Song,Z.-C. et al. Fossil Spores and Pollen of China. Volume 1: The Late Cretaceous and Tertiary Spores and Pollen. |
1999 |
| details |
Cenomanian |
Oligocene |
China(S.China) |
Song,Z.-C. et al. Fossil Spores and Pollen of China. Volume 1: The Late Cretaceous and Tertiary Spores and Pollen. |
1999 |