File:The Geology of Minnesota (1897) (14584065680).jpg

Identifier: geologyofminneso97minn (find matches)
Title: The Geology of Minnesota
Year: 1897 (1890s)
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Publisher: Minneapolis, Minn., Harrison and Smith
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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PLATE LII. Page.Figs. 1 to 3 Cameroceras HENNEPiNi, sp. nov 779 1 and 2 Two views in outline of a very large fragment. 3 The form of theterminal septum, showing the size of the sipho.From the Galena limestone, near Spring Valley, Minn.
Text Appearing After Image:
PLATE LIII. Page. Figs. 1 to 3 Cameroceras hennepini, sp. nov 779 (See also plate m.)1 LiiDgitudinal section of a small fragment through the sipho; showing a portionof the thick continuous wall of the tube and the annulations formed at thejunction therewith of the septa. On one side the siphonal wall is but partiallyretained.2 and 3 Two views of the same specimen. Fig. 4 Obthoceras lesueubi, sp. nov 779 (See also plates xlvii and lv.)A portion of a shell protruding from an internal cast of the siphon of Cameroceras2)roteifornie. From the Trenton limestone at Cannon Falls, Minn. Fig. 5 Cameroceras proteiforme Hall 777 (See also plates XLViii, xlix, l, li.)Longitudinal section of a siphonal cast enclosing two individuals of Orthocerasor Clinoceras. Trenton limestone, Cannon Falls, Minn. Vol. III. (®ephal@p®da.) Plate LIU.

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