| original |
Emsian |
|
Canada(New Brunswick) |
Gensel,P.G. A new species of Zosterophyllum from the Early Devonian of New Brunswick. |
1982 |
| details |
Emsian |
|
Canada(New Brunswick) |
Gensel,P.G. et al. Early land plant debris (Hooker's "Waifs and Stray"?) |
1990 |
| details |
Emsian |
|
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 |
| details |
Devonian |
|
Canada |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |