| details |
Siegenian |
|
Wales(Monmouthshire) |
Boureau,E. et al. Paleobotanical Treatise. 2. Bryophyta, Psilophyta, Lycophyta. |
1968 |
| details |
Siegenian |
|
USSR(Siberia) |
Boureau,E. et al. Paleobotanical Treatise. 2. Bryophyta, Psilophyta, Lycophyta. |
1968 |
| details |
Siegenian |
Emsian |
Wales |
Edwards,D. Further observations on Zosterophyllum llanoveranum from the Lower Devonian of South Wales. |
1969 |
| details |
Devonian |
|
Libya |
Lejal-Nicol,A. et al. An attempt to Synthesize the Devonian vegetal environment of Libya. |
1978 |
| details |
Devonian |
|
Nd |
Gensel,P.G. Devonian in situ, spores: A survey and discussion. |
1980 |
| details |
Early Devonian |
|
Nd |
Allen,K.C. A review of in situ, Late Silurian and Devonian spores. |
1980 |
| details |
Devonian |
|
Wales |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Pragian |
|
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 |