J0005 ?Mariopteris nervosa
FRAGMENT OF CONCAVE HALF OF SIDERITE CONCRETION, FOUND AS-IS. SPECIMEN 50mm X 21mm (2" x 13/16"). MILD SULFURIC ACID BATH APPLIED.
Credit
Photo by Mark Kmiecik
By Mark Kmiecik
FRAGMENT OF CONCAVE HALF OF SIDERITE CONCRETION, FOUND AS-IS. SPECIMEN 50mm X 21mm (2" x 13/16"). MILD SULFURIC ACID BATH APPLIED.
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