J0001 Annularia radiata?
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 22mm X 13mm (7/8" x 1/2").
Credit
Photo by Mark Kmiecik
By Mark Kmiecik
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 22mm X 13mm (7/8" x 1/2").
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