| details |
Riphean |
|
Spitsbergen |
Knoll,A.H. et al. Taphonomic and evolutionary changes across the Mesoproterozoic-Neoproterozoic transition |
1995 |
| details |
Vendian |
|
India(Madhya Pradesh) |
Maithy,P.K. et al. Upper Vindhyan biota and Precambrian/Cambrian bound. |
1997 |
| details |
Late Proterozoic |
|
Arizona |
Porter,S.M. et al. Testate amoebae in the Neoproterozoic Era: Evidence from vase-shaped microfossils in the Chuar Group, Grand Canyon. |
2000 |
| details |
Cryogenian |
|
Romania |
Olaru,L. Using acritarch assemblages to correlate Upper Proterozoic and Lower Paleozoic metamorphic sequences in Romania |
2001 |
| details |
Botomian |
|
Australia(S.Australia) |
Jago,J.B. et al. Correlation within early Palaeozoic basins of eastern South Australia. |
2002 |