| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Jurassic |
|
Nd |
Taylor,T.N. et al. In situ, pollen and spores in plant evolution. 14C -Importance of in situ, pollen and spores in understanding the biology and evolution of fossil plants. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| original |
Bajocian |
|
England(Yorkshire) |
Hill,C.R. Ultrastructure of in situ, fossil cycad pollen from the English Jurassic, with a description of the male cone Androstrobus balmei sp.nov. |
1990 |