G0003 Annularia sphenophylloides
BOTH HALVES SIDERITE CONCRETION , SPLIT BY FREEZE/THAW & LIGHT HAMMER BLOW. SPECIMEN 25mm x 17mm (1" x 11/16").
Credit
Photo by Mark Kmiecik
By Mark Kmiecik
BOTH HALVES SIDERITE CONCRETION , SPLIT BY FREEZE/THAW & LIGHT HAMMER BLOW. SPECIMEN 25mm x 17mm (1" x 11/16").
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