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Coal Measures and Coal Mining in Iowa, including paleontology and a discussion on the coal formation; also the methods of mining by Russell T. Hartman, 1898

Coal Measures and Coal Mining in Iowa by Russell T. Hartman, 1898, Page 102

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[page]101.[/page] Illinois, Missouri, Kansas, and Nebraska. Reference.-- Geol. of Missouri, Vol. V. page 103. [underlined][underlined]Terebratulidae[/underlined][/underlined] Brachia supported on calcareous loops. [underlined]Diclasma bovidens[/underlined], Morton (sp.). Plate VIII. figure 5. Terebratula bovidens, Morton, 1836, Am. Jour. Sci. vol. I., p. 711. T. millepunctata, Hall, 1856, Pac. R. R. Sur. vol III., p. 101. T. geniculosa, McChesney, 1867, Trans. Chic. Acad. Sci., vol. I. p. 87. Diclasma bovidens, White, 1875, Expl. and Sur. west of 100th Meridian. Shell small longer than wide, ovate in outline, moderately bi-convex, greatest convexity slightly behind the middle; valves nearly equally convex; no hinge area.
 
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