Carboniferous Fossil Plant Slab, Horsetail-Type Flora, North America

North America, United States, Carboniferous Period, ca. 359 to 299 million years ago. A shale matrix slab preserving fossilized horsetail-type plant impressions, the branching, segmented forms characteristic of early vascular flora, displayed against the dark stone surface. Size: 8.5" L x 7.5" W (21.6 cm x 19 cm). Item # 202023

Estimate:£170.26

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