Ferromia sp
- Citations total:
- 2
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| details | Late Arenigian | Early Llanvirnian | Czech Republic | Fatka,O. Organic-walled microfossils (Chitinozoa and Acritarcha) from Praha - Cervenн vrch Hill (SЎrka Formation, Middle Ordovician, Prague Basin) | 2003 |
| details | Late Arenigian | Early Llanvirnian | Czech Republic | Kraft,P. et al. Fossil assemblages from the Middle Ordovician ?Ўrka Formation at Praha - Cervenн vrch Hill (Prague Basin, Barrandian area). | 2003 |