| original |
Middle Cambrian |
|
Morocco |
Vanguestaine,M. et al. Middle Cambrian acritarchs of Tacheddirt Valley (High Atlas, Morocco) in the context of an new zoning of the Cambrian. |
1983 |
| details |
Middle Cambrian |
|
Sweden |
Hagenfeldt,S.E. Acritarch assemblages of Early and Middle Cambrian age in the Baltic Depression and South-Central Sweden |
1988 |
| details |
Middle Cambrian |
|
Sweden |
Hagenfeldt,S.E. Middle Cambrian acritarchs from the Baltic Depression and South-Central Sweden, taxonomy and biostratigraphy. |
1989 |
| details |
Middle Cambrian |
|
Sweden |
Hagenfeldt,S.E. Lower Cambrian acritarchs from the Baltic Depression and South-Central Sweden, taxonomy and biostratigraphy. |
1989 |
| details |
Middle Cambrian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |