| details |
Eifelian |
Frasnian |
Canada(Alberta) |
Stasiuk,L.D. Microscopic studies of sedimentary organic matter: key to understanding organic-rich strata, with Paleozoic examples from Western Canada Basin |
1999 |
| details |
Miocene |
|
California |
Teerman,S.C. et al. Source rock/dispersed organic matter characterization-TSOP Research Subcommittee results. |
1994 |
| details |
Late Llandoverian |
Wenlockian |
Belgium |
Le H©riss©,A. Biogeography of upper Llandovery and Wenlock acritarchs. |
1995 |
| details |
Ordovician |
|
Baltic |
Eisenack,A. Microfossils from the Baltic Ordovician. 2: Vaginatenkalk to Lyckholmer Stufe. |
1962 |
| details |
Silurian |
|
Baltic |
Karogodina,V.A. On the chemical treatment of ancient rocks for palaeontological investigations. |
1969 |
| details |
Late Arenigian |
Llanvirnian |
Australia(W.Australia) |
Hoffmann,C.F. et al. Hydrocarbon biomarkers from Ordovician sediments and fossil alga Gloeocapsomorpha prisca, Zalessky,1917 |
1987 |
| details |
Late Llanvirnian |
Early Llandeilian |
Australia(W.Australia) |
Combaz,A. et al. Palynostratigraphy of the Ordovician from some boreholes in the Canning Basin, Western Australia. |
1972 |
| details |
Middle Ordovician |
|
Australia(W.Australia) |
Winchester-Seeto,T. et al. The environmental response of Middle Ordovician large organic walled microfossils from the Goldwyer and Nita Formations, Canning Basin, Western Australia. |
2000 |
| details |
Middle Ordovician |
|
Australia(W.Australia) |
Winchester-Seeto,T. et al. Chitinozoans from the Middle Ordovician (Darriwilian) Goldwyer and Nita Formations, Canning Basin (Western Australia). |
2000 |
| details |
Arenigian |
|
Australia(Queensland) |
Playford,G. et al. Acritarch palynology of Lower Ordovician strata, Georgina Basin, Queensland, Australia. |
1988 |
| details |
Early Arenigian |
Middle Arenigian |
Australia(Queensland) |
Playford,G. et al. Acritarch palynoflora of the Coolibah Formation (Lower Ordovician) Georgina Basin,Queensland. (In: Palynological and Palaeobotanical Studies in Honour of Basil E. Balme. P.A. Jell and G. Playford, editors) |
1988 |
| details |
Ordovician |
|
Australia(Queensland) |
Derenne,S. et al. Similar morphological and chemical variations of Gloeocapsomorpha prisca in Ordovician sediments and cultured Botryococcus braunii as a response to changes in salinity |
1992 |
| details |
Silurian |
Middle Devonian |
Africa(Sahara) |
Taugourdeau,P. Incertae sedis and various microfossils preserved in organic matter of Paleozoic Sahara. |
1978 |