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Devonian strata in Montana

โœ Scribed by Peale, A. C.


Book ID
121093291
Publisher
American Association for the Advancement of Science
Year
1885
Tongue
English
Weight
95 KB
Volume
ns-5
Category
Article
ISSN
0036-8075

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The ammonoids from the Three Forks Shale
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Abstract. The ammonoid fauna from the Late Devonian Three Forks Shale of Montana is revised. Six taxa were recognised, which belong to the genera Tornoceras, Pernoceras, Raymondiceras, Platyclymenia, Pleuroclymenia, and Carinoclymenia. The ammonoid assemblage suggests a stratigraphic position within