| original |
Downtonian |
|
Wales(Carmarthenshire) |
Richardson,J.B. et al. Upper Silurian and Lower Devonian spore assemblages from the Welsh Borderland and South Wales |
1969 |
| original |
Late Devonian |
|
England(Gloucestershire) |
Dolby,G. et al. Palynological evidence concerning the Devonian Carboniferous boundary in the Mendips, England. |
1970 |
| original |
Late Frasnian |
Famennian |
Canada(NWT,Franklin) |
Owens,B. Miospores from the Middle and Early Upper Devonian rocks of the Western Queen Elizabeth Islands, Arctic Archipelago. |
1971 |
| details |
Roadian |
Wordian |
Antarctica |
LindstrŠ¶m,S. Palynology of Permian shale, clay and sandstone clasts from the Basen till in northern Vestfjella, Dronning Maud Land |
2005 |