Abstract
THE specimen to be described is a coal-ball petrifaction from the Old Meadows Pit, Bacup, Lancashire, and consists of a main axis, which followed a very sinuous course in the coal-ball. Of this axis the tissues of the outer cortex and the stelar xylem only are preserved, there being a wide space between the outer cortex and the central stele.
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References
Leclercq, S., Ann. Bot., 44, 31 (1930).
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DUERDEN, H., WRIGHT, A. A Ligulate Pteridophyte from the Lower Coal Measures of Bacup, Lancashire. Nature 170, 41–42 (1952). https://doi.org/10.1038/170041a0
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DOI: https://doi.org/10.1038/170041a0
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