- Author:
- Kremp,G.O.W.
- Year:
- 1966
- Title:
- Protoquercus, the Missing Link between Gymnospermous and Dicotyledonous pollen.
- Reference:
- Kremp,G.O.W. (1966) Protoquercus, the Missing Link between Gymnospermous and Dicotyledonous pollen. Arizona Academy of Science Vol. 4 P.
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Castanea | Castanea | Nd | Early Cretaceous | |
| Protoquercus | Protoquercus | Nd | Early Cretaceous | |
| Schopfipollenites | Schopfipollenites | Nd | Late Pennsylvanian | |
| Tricolpites | Tricolpites troedssonii | Nd | Early Jurassic |