| details |
Precambriam |
|
Canada(NWT,Mackenzie) |
Horodyski,R.J. et al. A new shale-facies microbiota from the Middle Proterozoic Dismal Lakes Group, District of MacKenzie, Northwest Territories, Canada. |
1980 |
| original |
Middle Proterozoic |
|
Montana |
Horodyski,R.J. Middle Proterozoic shale facies microbiota from the Lower Belt Supergroup, Little Belt Mountains, Montana. |
1980 |
| details |
Riphean |
|
Scotland(Ross/Cromarty) |
Zhang,Z. Upper Proterozoic microfossils from the Summer Isles, northwest Scotland. |
1982 |
| details |
Late Proterozoic |
Early Cambrian |
Canada(Yukon) |
Hofmann,H.J. Organic-walled microfossils from the Latest Proterozoic and Earliest Cambrian of the Wernecke Mountains, Yukon. |
1984 |
| details |
Middle Proterozoic |
|
Montana |
Mandal,J. et al. Microbiota from the Kushalgarh Formation, Delhi Supergroup, India. |
1984 |
| details |
Early Riphean |
|
Idaho |
Pflug,H.D. et al. On the evolution of the eukaryotic phytoplankton in the Riphean: New evidence from the Beltian Series of North America. |
1988 |
| details |
Early Riphean |
|
Montana |
Pflug,H.D. et al. On the evolution of the eukaryotic phytoplankton in the Riphean: New evidence from the Beltian Series of North America. |
1988 |
| details |
Middle Proterozoic |
|
Montana |
Horodyski,R.J. Paleontology of Proterozoic Shales and Mudstones: Examples from the Belt Supergroup, Char Group, and Pahruump Group, Western USA |
1993 |
| details |
Nd |
|
Nd |
Hofmann,H.J. et al. Shale-Facies microfossils from the Proterozoic Bylot Supergroup, Baffin Island, Canada. |
1994 |
| details |
Nd |
|
Nd |
Butterfield,N.J. et al. Paleobiology of the Neoproterozoic Svabergfjellet Formation, Spitsbergen |
1994 |