stratigraphy

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The Denver Tertiary formation
Charles Whitman Cross

American Journal of Science April 1889, s3-37 (220) 261-282; DOI: https://doi.org/10.2475/ajs.s3-37.220.261
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Notes on the Laramie group of southern Colorado and northern New Mexico east from the Spanish ranges
John James Stevenson

American Journal of Science August 1879, s3-18 (104) 129-134; DOI: https://doi.org/10.2475/ajs.s3-18.104.129
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Note on the Fox Hills group of Colorado
John J. Stevenson

American Journal of Science May 1879, s3-17 (101) 369-373; DOI: https://doi.org/10.2475/ajs.s3-17.101.369
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Note on the age of the Laramie group or Rocky Mountain lignitic formation
Henry Martyn Bannister

American Journal of Science March 1879, s3-17 (99) 243-245; DOI: https://doi.org/10.2475/ajs.s3-17.99.243
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On critical periods in the history of the earth and their relation to evolution; and on the Quaternary as such a period
Joseph Le Conte

American Journal of Science August 1877, s3-14 (80) 99-114; DOI: https://doi.org/10.2475/ajs.s3-14.80.99
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On a geological chart of the United States east of the Rocky Mountains and of Canada
Frank Howe Bradley

American Journal of Science October 1876, s3-12 (70) 286-291; DOI: https://doi.org/10.2475/ajs.s3-12.70.286
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Notice of the address of Prof T. Sterry Hunt before the American Association at Indianapolis
James Dwight Dana

American Journal of Science February 1872, s3-3 (14) 86-93; DOI: https://doi.org/10.2475/ajs.s3-3.14.86
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On the geology of eastern New England
Thomas Sterry Hunt

American Journal of Science July 1870, s2-50 (148) 83-90; DOI: https://doi.org/10.2475/ajs.s2-50.148.83
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Notes on the geology of Kansas
Ferdinand Vandiveer Hayden

American Journal of Science July 1867, s2-44 (130) 32-40; DOI: https://doi.org/10.2475/ajs.s2-44.130.32
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Notes on some points in the geology of Kansas
George Clinton Swallow

American Journal of Science May 1866, s2-41 (123) 405-406; DOI: https://doi.org/10.2475/ajs.s2-41.123.405

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