The Age and Stratigraphic Relations of the Ceratops Beds of Wyoming and Montana

Paperback | May 5, 2014

byTimothy William Stanton

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 edition. Excerpt: ... investigation in the field and during the present season several important areas will be critically studied with special reference to evidence of unconformities and the stratigraphic relations of faunas and floras. In order to present somewhat in detail the data now in hand it will be necessary to give a brief review of the stratigraphy and paleontology of some of the more important areas preparatory to the general discussion of the evidence. Local Stratigraphy And Paleontology. Converse County, Wyoming.--This area in Eastern Wyoming was made famous 20 years ago by Hatcher's collections of the Triceratops fauna, including the dinosaur genera Triceratops, Diceratops, Torosaurus, and Trachodon, together with turtles and other reptiles, fishes and many small mammals. Hatcher's excellent descriptions' of the stratigraphy and general features of the region have been supplemented by Stanton and Knowlton's stratigraphic and paleontologic notes' and much of this material has been republished in Hatcher and Lull's Ceratopsia monograph.5 The lowest member of the section exposed is formed by the upper part of the Pierre shale with abundant characteristic invertebrate fossils. This grades upward into sandstones that have been referred to the Fox Hills including at the top a massive bed of yellowish gray friable sandstone 100 feet thick with concretions containing Veniella humilis, Sphariola, Gervillia subtorluosa and other Fox Hills fossils. No marine fossils have been found above this horizon. Sandstones mostly of light colors with very few and thin intercalations of shale continue upward for 400 feet. This member has yielded no fossils and may belong either to the Fox Hills or to the overlying 'Ceratops beds" in which Hatcher originally included...

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 edition. Excerpt: ... investigation in the field and during the present season several important areas will be critically studied wi...

Format:PaperbackDimensions:22 pages, 9.69 × 7.44 × 0.05 inPublished:May 5, 2014Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217255736

ISBN - 13:9780217255738

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