Keyword "LOWER ORDOVICIAN" in:

The discovery of the oldest Ordovician fauna in NE flank of the Prague Basin (at Praha-Troja and Praha-Vokovice)
Jan Peršín, Michal Mergl, Petr Budil, Zuzana Tasáryová, volume 51, issue 1, 2018, pages 81–87
pdf (5.42 MB)

Analyse of acritarch assemblages at the Tremadocian-Arenigian boundary
Fatka,O., Brocke,R., volume 33, 2000 (GRR for 1999), pages 49–53
pdf (0.22 MB)

Group Acritarcha in the Lower Ordovician of the Prague Basin
Fatka,O., volume 30, 1997 (GRR for 1996), pages 104–106
pdf (0.14 MB)