Pachytesta illinoensis
- Citations total:
- 3
| link
|
From
|
To
|
Geolocation
|
Author - title
|
Year
|
|---|---|---|---|---|---|
| details | Middle Pennsylvanian | Late Pennsylvanian | USA | Zimmerman,R.P. The ultrastructure of Paleozoic megaspores membranes. | 1970 |
| details | Carboniferous | Nd | Chaloner,W.G. et al. Heterospory: Cul-de-Sac or pathway to the seed? (In: Pollen and Spores, Patterns of Diversification. S.Blackmore and S.H.Barnes, editors) | 1991 | |
| details | Middle Pennsylvanian | Late Pennsylvanian | USA | Kedves,M. Tranmission Electron Microscopy of the Fossil Gymnosperm Exines. | 1994 |