Category:Petroxestes pera bivalve borings on limestone hardground (Waynesville Formation, Upper Ordovician; Cincinnatian area, USA)
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Media in category "Petroxestes pera bivalve borings on limestone hardground (Waynesville Formation, Upper Ordovician; Cincinnatian area, USA)"
The following 8 files are in this category, out of 8 total.