Mesozoic

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The Cretaceous of Manitoba
Joseph Burr Tyrrell

American Journal of Science September 1890, s3-40 (237) 227-232; DOI: https://doi.org/10.2475/ajs.s3-40.237.227
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Occurrence of Goniolina in the Comanche series of the Texas Cretaceous
Robert Thomas Hill

American Journal of Science July 1890, s3-40 (235) 64-65; DOI: https://doi.org/10.2475/ajs.s3-40.235.64
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Additional characters of the Ceratopsidae, with notice of new Cretaceous dinosaurs
Othniel Charles Marsh

American Journal of Science May 1890, s3-39 (233) 418-426; DOI: https://doi.org/10.2475/ajs.s3-39.233.418
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Notes on the Cretaceous of the British Columbia region; the Nanaimo group
George Mercer Dawson

American Journal of Science March 1890, s3-39 (231) 180-183; DOI: https://doi.org/10.2475/ajs.s3-39.231.180
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On Cretaceous plants from Marthas Vineyard
Charles David White

American Journal of Science February 1890, s3-39 (230) 93-101; DOI: https://doi.org/10.2475/ajs.s3-39.230.93
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The Lower Cretaceous of the Southwest and its relation to the underlying and overlying formations
Charles Abiathar White

American Journal of Science December 1889, s3-38 (228) 440-445; DOI: https://doi.org/10.2475/ajs.s3-38.228.440
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Relation of the uppermost Cretaceous beds of the eastern and southern United States; and the Tertiary-Cretaceous parting of Arkansas and Texas
Robert Thomas Hill and R. A. F. Penrose

American Journal of Science December 1889, s3-38 (228) 468-473; DOI: https://doi.org/10.2475/ajs.s3-38.228.468
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The skull of the gigantic Ceratopsidae
Othniel Charles Marsh

American Journal of Science December 1889, s3-38 (228) 501-506; DOI: https://doi.org/10.2475/ajs.s3-38.228.501
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observations on some of the trap ridges of the East Haven-Branford region
Edmund Otis Hovey

American Journal of Science November 1889, s3-38 (227) 361-383; DOI: https://doi.org/10.2475/ajs.s3-38.227.361
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Some suggestions upon the methods of grouping the formations of the middle Cretaceous and the employment of an additional term in its nomenclature
George Homans Eldridge

American Journal of Science October 1889, s3-38 (226) 313-321; DOI: https://doi.org/10.2475/ajs.s3-38.226.313

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