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Rough Coral by geofablab Nov 8, 2013
Dawsonoceras (Cephalopod) by geofablab Nov 8, 2013
Lepidodendron by geofablab Nov 8, 2013
Sand Shark Jaw by geofablab Nov 8, 2013
Sole marks, lithic sandstone by geofablab Nov 8, 2013
Spiny Snail by geofablab Nov 8, 2013
Spiny Snail by geofablab Nov 8, 2013
Brachiopod by geofablab Nov 8, 2013
Vesicular Basalt by geofablab Nov 8, 2013
Tabulate Coral by geofablab Nov 8, 2013
Sea Urchin by geofablab Oct 24, 2013
Ames, Iowa, with Iowa State Football Stadium by geofablab Oct 24, 2013
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