| details |
Late Cretaceous |
|
USSR(Baltic) |
Stancliffe,R.P.W. et al. The acritarch genus Veryhachium Deunff,1954, emend., Sarjeant and Stancliffe,1994: A taxonomic restudy and a reassessment of its constituent species. |
1994 |
| details |
Early Devonian |
|
China(Kwangsi) |
Stancliffe,R.P.W. et al. The acritarch genus Veryhachium Deunff,1954, emend., Sarjeant and Stancliffe,1994: A taxonomic restudy and a reassessment of its constituent species. |
1994 |
| details |
Nd |
|
Nd |
Fatka,O. et al. The Ordovician acritarch Frankea: some critical remarks |
1997 |
| details |
Nd |
|
Nd |
Fatka,O. et al. The Ordovician acritarch Frankea: some critical remarks |
1997 |