| details |
Middle Ordovician |
|
USA(Mid-Continent) |
Jacobson,S.R. et al. Microscopical and geochemical observations on Gloeocapsamorpha sp., from the St. Peter Sandstone to the Guttenberg Limestone Member of the Decorah Formation, (Middle Ordovician) of the midcontinent, USA. |
1986 |
| 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 |
Llanvirnian |
|
China(Yunnan) |
Fang,X. Ordovician micropaleoflora in Kunming-Luquan Region, Yunnan Province, and its stratigraphical significance. |
1987 |
| 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 |
Middle Ordovician |
|
USSR(Estonian SSR) |
Foster,C.B. et al. Gloeocapsomorpha prisca Zalesskey 1917; A new study. Part 1: Taxonomy, geochemistry and palaeoecology. |
1989 |
| details |
Ordovician |
|
Nd |
Peniguel,G. et al. Microalgae -their importance in stratigraphy and petroleum exploration. |
1989 |
| details |
Middle Ordovician |
Late Ordovician |
Canada(Saskatchewan) |
Stasiuk,L.D. et al. The life cycle and phyletic affinity of Gloeocapsomorpha prisca, Zalessky 1917, from Ordovician rocks in the Canadian Williston Basin. (In: Current research, Part D: Interior Plains and Arctic Canada) |
1990 |
| details |
Middle Ordovician |
|
USSR(Estonian SSR) |
Foster,C.B. et al. Gloeocapsomorpha prisca, Zalessky,1917; A new study Part LI; Origin of Kukersite, a new interpretation. |
1990 |
| details |
Late Ordovician |
|
Canada(Saskatchewan) |
Stasiuk,L.D. et al. Organic microfacies and basinal tectonic control on source rock accumulation; A microscopic approach with examples from an intracratonic and extensional basin. (In: Recent Advances in Organic Petrology and Geochemistry; A Symposium Honoring Dr P.Hacquebard. W.Kalkreuth et al, editors) |
1991 |
| details |
Ordovician |
|
USSR(Baltic) |
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 |
Ordovician |
|
Canada(Ontario) |
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 |
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 |
Ordovician |
|
Wisconsin |
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 |
Ordovician |
|
Canada(Saskatchewan) |
Stasiuk,L.D. Oil-prone alginite macerals from organic-rich Mesozoic and Palaeozoic strata, Saskatchewan, Canada. |
1994 |
| details |
Late Ordovician |
|
Canada(Saskatchewan) |
Stasiuk,L.D. Fluorescence properties of Palaeozoic oil-prone Alginite in relation to hydrocarbon generation, Williston Basin, Saskatchewan, Canada. |
1994 |
| details |
Cincinnatian |
|
Illinois |
Guthrie,J.M. et al. Geochemical indicators of depositional environment and source-rock potential for the Upper Ordovician Maquoketa Group, Illinois Basin. |
1994 |