IV. THE FAUNA OF THE UPPER DEVONIAN IN MONTANA. 



Part I. — Thk Fossils of the Red Shales. 



By Percy 1*^. Raymond. 



In a paper " On the Occurrence in the Rocky Mountains of an Upper 

 Devonian Fauna with Clymenia " in the American Journal of Science, 

 Series 4, Vol. XXIII, p. ii6, 1907, the writer announced the dis- 

 covery by Mr. Earl Douglas of a fauna very similar to that of the 

 Clymenia limestone of Germany. In that paper a preliminary list of 

 the fossils found near Logan and Three Forks in the five zones of the 

 Three Forks shale was given. The most novel of the fossils there 

 listed were found in the red fissile shale of Zone i and it is these 

 fossils which form the subject of the present paper. In later articles 

 the more prolific faunas of the green shale and the limestone of Zones 

 2 and 4 will be described. 



In a paper read before the Section of Palasozoology at the Seventh 

 International Zoological Congress, but not yet published, the age of 

 this fauna was discussed, and an attempt was made to show that it was 

 younger than the fauna with Manticoceras iniumesceiis in New York, 

 Michigan, and elsewhere. 



In the present paper nothing further than a description of the fauna 

 of the red shale is attempted, further remarks on correlation being 

 deferred until the Devonian faunas of the northern Rocky Mountains 

 are more fully known. 



Class BRACHIOPODA. 



Order TEL O TREMA TA ^ Beecher. 



Family RHYNCHONELLID.F: Gray. 



Genus Camarotoxhia Hall and Clarke. 



Camarotcechia contracta Hall.' 



(Plate III, figures 1-7.) 



Atrypa contracta Hall, 1843. '''■ Keport of the Fourth District^ Geology of New 

 York;' p. 66, figs. 2, 3. 



Rhynchonella [Stenocis7iia) contrada Hall, 1867. '■'■ Paleontology of Neiv York;' 

 Vol. IV, p. 351, pi. 55, figs. 26-39. 



• For a full synonymy of the brachiopods listed in this article, see Schuchert, Bull. 

 U. S. Geol. Survey, No. 87, 1897. 



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