| details |
Precambriam |
|
Canada(NWT) |
Hofmann,H.J. Precambrian microflora, Belcher Islands, Canada significance and systematics. |
1976 |
| details |
Late Helikian |
Early Hadrynian |
Canada(NWT) |
Hofmann,H.J. et al. Precambrian biota from the Little Dal Group, MacKenzie Mountains, Northwestern Canada. |
1979 |
| 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 |
| details |
Middle Proterozoic |
|
Montana |
Horodyski,R.J. Middle Proterozoic shale facies microbiota from the Lower Belt Supergroup, Little Belt Mountains, Montana. |
1980 |
| details |
Early Cambrian |
|
Canada(Yukon) |
Hofmann,H.J. Organic-walled microfossils from the Latest Proterozoic and Earliest Cambrian of the Wernecke Mountains, Yukon. |
1984 |
| details |
Early Cambrian |
|
Canada(Yukon) |
Hofmann,H.J. Organic-walled microfossils from the Latest Proterozoic and Earliest Cambrian of the Wernecke Mountains, Yukon. |
1984 |
| details |
Early Precambrian |
|
Canada(NWT,Mackenzie) |
Horodyski,R.J. et al. Microfossils from the Early Proterozoic Hornby Bay Group, District of MacKenzie, NWT, Canada. |
1985 |
| details |
Precambriam |
|
USSR |
Golovenok,V.K. Precambrian microfossils in chert and their biostratigraphic significance. |
1989 |
| details |
Early Riphean |
|
Canada(NWT,Franklin) |
Hofmann,H.J. et al. Shelf-facies microfossils from the Uluksan Group (Proterozoic Bylot Supergroup), Baffin Island, Canada. |
1991 |
| details |
Riphean |
|
India(Uttar Pradesh) |
Tewari,V.C. Discovery of Pre-Edicaran acritarch Chuaria Circularis (Walcott 1899; Vidal and Ford,1985) from the Deoban Mountains, Lesser Himalaya, India |
1996 |