January62notes - University of Oklahomaogs.ou.edu/docs/geologynotes/GN-V22N1.pdfSpecimens figured by...
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January62notes - University of Oklahomaogs.ou.edu/docs/geologynotes/GN-V22N1.pdfSpecimens figured by Tien (1926, pl. 3, figs. 5d-f, 6c-d) have more or less quadrangular outlines and