2 Resultaten gevonden voor "Bestand:Petroxestes_pera_bivalve_boring_on_limestone_hardground_(Upper_Ordovician;_Cincinnatian_area,_USA)_8.jpg".

Bestand:Petroxestes pera bivalve boring on limestone hardground (Upper Ordovician; Cincinnatian area, USA) 8.jpg

at URL: https://www.flickr.com/photos/jsjgeology/51188900026/ operator: Flickr URL: https://live.staticflickr.com/65535/51188900026_6e3c3f5a48_o.jpg...

Bestand:Hyolithe Spence Shale 01.png

Upper Ordovician hardground, Whitewater Formation, southern Ohio. Petroxestes pera borings in a hardground; Whitewater Formation (Upper Ordovician) of southern...

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