| original |
Late Riphean |
Early Vendian |
Utah |
Vidal,G. et al. Microbiotas from the Late Proterozoic Chuar Group (Northern Arizona) and the Uinta Mountain Group (Utah) and their chronostratigraphic implications |
1985 |
| original |
Late Riphean |
Early Vendian |
Arizona |
Vidal,G. et al. Microbiotas from the Late Proterozoic Chuar Group (Northern Arizona) and the Uinta Mountain Group (Utah) and their chronostratigraphic implications |
1985 |
| details |
Late Riphean |
Early Vendian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Riphean |
|
Arizona |
Vidal,G. et al. Patterns of phytoplankton radiation across the Precambrian-Cambrian boundary. |
1992 |
| details |
Late Precambrian |
|
China(Shansi) |
Yan,Y.-Z. et al. Discovery of Acanthomorphic acritarchs from the Baicaoping Formation in Yongji, Shanxi and its geological significance. |
1992 |
| details |
Precambriam |
|
Arizona |
Horodyski,R.J. Paleontology of Proterozoic Shales and Mudstones: Examples from the Belt Supergroup, Char Group, and Pahruump Group, Western USA |
1993 |
| details |
Proterozoic |
|
Arizona |
Vidal,G. et al. Biodiversity speciation and extinction trends of Proterozoic and Cambrian phytoplankton |
1997 |