Ordovician

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Supplement to the account of the discoveries in Vermont geology of the Rev. Augustus Wing
James D. Dana

American Journal of Science July 1877, s3-14 (79) 36-37; DOI: https://doi.org/10.2475/ajs.s3-14.79.36
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On the relations of the geology of Vermont to that of Berkshire
James Dwight Dana

American Journal of Science July 1877, s3-14 (79) 37-48; DOI: https://doi.org/10.2475/ajs.s3-14.79.37
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An account of the discoveries in Vermont geology of the Rev. Augustus Wing
James Dwight Dana

American Journal of Science May 1877, s3-13 (77) 332-347; DOI: https://doi.org/10.2475/ajs.s3-13.77.332
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Classified list of the rocks observed in the Huronian series south of Lake Superior ...
Thomas Benton Brooks

American Journal of Science September 1876, s3-12 (69) 194-204; DOI: https://doi.org/10.2475/ajs.s3-12.69.194
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On the occurrence of the brown hematite deposits of the Great Valley
Frederick Prime

American Journal of Science June 1875, s3-9 (54) 433-440; DOI: https://doi.org/10.2475/ajs.s3-9.54.433
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Note on some new points in the elementary stratification of the Primordial and Canadian rocks of south central Wisconsin
Roland Duer Irving

American Journal of Science June 1875, s3-9 (54) 440-443; DOI: https://doi.org/10.2475/ajs.s3-9.54.440
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On the Silurian age of the southern Appalachians
Frank Howe Bradley

American Journal of Science April 1875, s3-9 (52) 279-288; DOI: https://doi.org/10.2475/ajs.s3-9.52.279
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On the so-called land plants from the Lower Silurian of Ohio
John Strong Newberry

American Journal of Science August 1874, s3-8 (44) 110-113; DOI: https://doi.org/10.2475/ajs.s3-8.44.110
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Notes on the geology of western Texas near the thirty-second parallel
Walter Proctor Jenney

American Journal of Science January 1874, s3-7 (37) 25-29; DOI: https://doi.org/10.2475/ajs.s3-7.37.25
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On the remains of land plants in the Lower Silurian
Leo Lesquereux

American Journal of Science January 1874, s3-7 (37) 31-34; DOI: https://doi.org/10.2475/ajs.s3-7.37.31

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