The Stratigraphic and Faunal Relations of 

 the Waldron Fauna in Southern Indiana/ 



By E. M. Kindle and V. H. Barnett." 



INTRODUCTION. 



The rich Silurian fauna occurring at Waldron, Indiana, be- 

 came known to paleontologists through Prof. James HalF more than 

 40 years ago. The very complete collections which Hall had made 

 and the excellent descriptions and illustrations which he published'^ 

 left but little for later workers to add to our knowledge of the com- 

 position of the fauna at Waldron. Concerning the stratigraphic 

 relations of this interesting fauna and its distribution beyond the 

 original locality, Prof. Hall's valuable paper contributed nothing, 

 however. The principal additions to our knowledge of the distri- 

 bution of the fauna since Hall's work comprise various notes in 

 the papers of Prof. Foerste"" incidental to the discussion of other 

 parts of the Silurian in Indiana and a list of the fauna at Tarr 

 Hole by Prof. Cummin gs.' The latter paper confines itself to a 

 single locality twelve miles south of the original locality of the 

 Waldron fauna. 



The writers have, while occupied in part with other problems, 

 given considerable attention to the distribution of the Waldron 

 shale and its fauna in southern Indiana during two field seasons. 

 These observations have brought out most of the essential facts re- 

 garding the distribution and stratigraphic relations of this fauna 

 in southern Indiana: The direct studies of the fauna have been 

 supplemented by the field work of the senior author on the eastern 

 side of the Cincinnati geanticline in Ohio and Kentuckv^ 



^Published by permission of the Director of the U. S. Geological Survey. 



^The collections on which the paper is based were made by both authors; the strati- 

 graphic section is based upon the notes of the senior author. 



•^Notice of some new species of fossils from a locality of the Niagara group in Indiana 

 with a list of identified species from the same place. — Trans. Albany Inst., Vol. IV, 1862. 



^The fauna of the Niagara group in central Indiana, 28th Ann. Rept. N. Y. State Mus., 

 1879, pp. 99-199, plates III-XXXIV. 



e21st Ann. Rept. Ind. Dept. Geol. and Nat. Res. 1897, pp. 213-288; 22d Ann. Rept. Ind. 

 Dent. Geol. and Nat. Res. 1898, pp. 195-255; 24th Ann. Rept. Ind. Dept. Geol. and Nat. 

 Res. 1900, pp. 41-80. 



*On the Waldron fauna at Tarr Hole, Indiana. Proc. Ind. Acdy. Sci., pp. 174-176, 1900. 



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