| original |
Late Strunian |
|
Pennsylvania |
Chitaley,S.D. et al. Bisporangiostrobus harrisii, gen.et sp.nov., an eligulate Lycopsid cone with Duosporites megaspores and Geminospora microspores from the Upper Devonian of Pennsylvania, USA. |
1988 |
| details |
Devonian |
|
USA |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Nd |
|
Nd |
Edwards,D. et al. In situ, pollen and spores in plant evolution. 14A -Review of in situ, spores in early land plants. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |