Chalk Group Lithostratigraphy: Northern England - Neetleton Pycnodonte Bed: Revision history

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10 October 2013

  • curprev 09:4309:43, 10 October 2013‎ Dbk talk contribs‎ 977 bytes +977‎ Created page with "A dark, grey, silty marl, overlying an erosion surface, and containing abundant specimens of the oyster ''Pycnodonte'' and fragments of the inoceramid bivalve ''Inoceramus atl..."
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