FAUNAS OF THE DEVONIAN SECTION NEAR 

 ALTOONA, PA. 



EDWARD M. KINDLE 

 United States Geological Survey, Washington, D. C. 



It is the purpose of this paper to present only the more saHent 

 faunal features of the section. The data presented are the incidental 

 results of studies and collections made primarily for the elucidation 

 of the areal geology of the region. 



The collections on which the faunal lists are based represent only 

 a sjnall fraction of the species which might be obtained by exhaustive 

 collecting. They are sufficiently full, however, to indicate quite 

 clearly the relationship of the several faunas which they represent to 

 those of the standard Devonian section of New York. It is a well- 

 known fact that the Devonian section, as developed in New York 

 suffers great changes, both lithologic and faunal, in the Allegheny 

 region to the southward. But the precise nature of these changes 

 why and where they occur, are not so well known. At present the 

 published data, which can be utilized in the study of the larger 

 problems of Devonian stratigraphic paleontology of the Allegheny 

 region, relate to a very few and widely scattered sections. Until the 

 results of many more carefully studied sections are available, many 

 fundamental questions of stratigraphic paleontology can be answered 

 only hypothetically. The bearing of such local studies on wider 

 problems seems to justify the present paper. 



Base of section. — Several hundred feet of gray shaly to heavy- 

 bedded limestones lie at the base of the section which is here described. 

 This portion of the section lay outside of the area under investigation, 

 and no attempt was made to recognize the several members of the 

 New York section which are probably represented. 



Oriskany fauna. — A coarse-grained, buff sandstone generally 

 represents the Oriskany horizon. At the east side of the Pennsyl- 

 vania Railroad, southwest of Bellwood, the Oriskany sandstone con- 

 tains the following species : 



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