The studied acritarchs and prasinophyceans derive from two different lithofacies comprising shallow-water mudstones (Dulnzaniriiza beds) overlain by grey ...
Missing: bih= 542 q= mudstonesandmudrocks
The Upper Ordovician ash beds in the Holy Cross Mountains, as well as the Baltoscandian K-bentonites, appear to be accumulated from pyroclastic material ...
Missing: 542 mudstonesandmudrocks
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