| original |
Givetian |
|
Ohio |
Wicander,R. et al. Systematics and biostratigraphy of the organic-walled microphytoplankton from the Middle Devonian, (Givetian), Silica Formation, Ohio, USA. |
1981 |
| details |
Givetian |
|
Ohio |
Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. |
1983 |
| details |
Ludlovian |
Couvinian |
Bolivia |
Kimyai,A. Paleozoic Microphyloplankton from South America |
1983 |
| details |
Eifelian |
|
Ohio |
Wicander,R. et al. Organic-walled microphytoplankton abundance and stratigraphic distribution from the Middle Devonian Columbus and Delaware Limestones of the Hamilton Quarry, Marion County, Ohio |
1983 |
| details |
Early Givetian |
Middle Givetian |
North America |
Wicander,R. Middle Devonian acritarch biostratigraphy of North America |
1984 |
| details |
Givetian |
|
Canada(Ontario) |
Wicander,R. et al. Palynomorphs from the Middle Devonian, (Givetian) Arkona Hungry Hollow and Widder Formations, Hungry Hollow Ontario, Canada and their biostratigraphic significance. |
1985 |
| details |
Givetian |
Frasnian |
Argentina(Salta) |
Barreda,V.D. Givetian - Frasnian acritarchs of the Noroeste Basin, Salta Province, Argentina. |
1986 |
| details |
Givetian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Middle Givetian |
Middle Frasnian |
Argentina(Salta) |
Rubinstein,C.V. Palynological investigations in the Lower Paleozoic of Argentina |
1993 |
| details |
Late Givetian |
Early Frasnian |
Argentina(Salta) |
Ottone,E.G. Devonian palynomorphs from the Los Monos Formation, Tarija Basin, Argentina |
1996 |
| details |
Late Famennian |
Tournaisian |
Portugal |
Pereira,Z. et al. Palynostratigraphy of the Devonian-Carboniferous boundary in Southwest Portugal. (In: Stratigraphie du Paleozoique. M.Streel, editor) |
1996 |
| details |
Ludlovian |
|
Bolivia |
Rubinstein,C.V. Silurian acritarchs from South America: A review. |
1996 |
| details |
Late Givetian |
|
Iowa |
Wicander,R. et al. The use of microphytoplankton and chitinozoans from interpretin transgressive/regressive cycles in the Rapid Member of the Ceda Valley Formation (Middle Devonian), Iowa. |
1997 |
| details |
Early Morrowan |
|
Argentina(Salta) |
di Pasquo,M. The Crassispora kosankei-Cystoptychus azcuyi Palynozone of the Upper Carboniferous Tupambi Formation, Tarija Basin, northern Argentina. |
2002 |