| original |
Late Devonian |
|
Indiana |
Wicander,E.R. et al. Organic-walled microphytoplankton and its stratigraphic significance from the Upper Devonian Antrim Shale, Indiana USA. |
1977 |
| details |
Late Frasnian |
Early Famennian |
Indiana |
Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. |
1983 |
| details |
Late Frasnian |
|
Iowa |
Wicander,R. et al. Acritarchs and spores from the Upper Devonian Lime Creek Formation, Iowa, USA. |
1985 |
| details |
Late Devonian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Frasnian |
Early Famennian |
Kentucky |
Huysken,K.T. et al. Palynology and biostratigraphy of selected Middle and Upper Devonian Black-Shale sections in Kentucky |
1992 |