| details |
Maastrichtian |
|
North Dakota |
Bergad,R.D. Palynology of the Hell Creek Formation (Maastrichtian) in South-Central North Dakota. |
1974 |
| details |
Middle Devonian |
|
Scotland(Shetland) |
Donovan,R.N. et al. The age of sediments on Foula, Shetland. |
1978 |
| details |
Late Frasnian |
|
Bolivia |
Perez-Leyton,M. Middle and Upper Devonian miospores of the Mermejo -La Angostu section, southeastern Bolivia. |
1991 |
| details |
Nd |
|
Nd |
Hemsley,A.R. Teratisms in living and fossil megaspores of the Lycopsidia: The arrangement and exine Ontogeny |
1997 |