Česko-estonská stratigrafie: Porovnání verzí

| colspan="3" | '''silur''' ''silur''
|-
| rowspan="2021" | ordovician '''ordoviitsium''' ''ordovik''
| rowspan="89" | upper ordovician
| style="border-bottom:double;" | hirnantian
| rowspan="4" | '''harju'''
| style="border-bottom:double;" | kosovian ''kosov'' ||  
|-
| rowspan="45" style="border-bottom:double;" | katian
| '''pirgu''' ||   ||   ||   ||  
|-
| '''nabala''' ||   ||   ||   ||  
|-
| rowspan="78" | '''viru'''
|   ||   ||   ||   ||  
|-
|   ||   ||   ||   ||  
|-
22 565

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