B0018 Sphenophyllum zwickaviense? + plant debris
BOTH HALVES OF SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 55mm X 25mm (2-3/16" x 1"). ALBUMEN APPLIED.
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Photo by Mark Kmiecik
By Mark Kmiecik
BOTH HALVES OF SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 55mm X 25mm (2-3/16" x 1"). ALBUMEN APPLIED.
By Nimravis,
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