| details |
Early Cretaceous |
|
Texas |
Sarjeant,W.A.S. Taxonomic notes on hystrichospheres and acritarchs. |
1964 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Neocomian |
Aptian |
Romania |
Baltes,N. Palynological contributions to the knowledge of Cretaceous deposits in the eastern Carpathian Foreland. |
1974 |
| details |
Neocomian |
Aptian |
Romania |
Givulescu,R. Fossil flora of Romania. (3rd Supplement) |
1978 |
| details |
Early Cretaceous |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |