141 Devonian of Southern Indiana 13 



Statio7i §B. — Southwest of Brownstown is a range of "Knobs" 

 known as Chestnut Ridge. The massive buff sandstone capping 

 these hills was found to be full of fossils at a small quarry near 

 the top of one of the knobs, one and one-half miles southeast of 

 Brownstown, south of the Brownstown and Tampico road. The 

 following species were obtained here from the Riverside sand- 

 stone: 



Aulopora sp. r, Aviculopeden sp. r, Camarotcechia sappho 

 c, Conularia newberiyi r, Crinoid stems r, Cypricardinia sp. 

 c, Cryptonella eiidora r, Derbya keokuk a, Dielasnia f , Lin- 

 gulodiscina 7iewber7yi Hall r, Leiorhynchus newbcrryif r, 

 Macrodon sp. c, Orthoceras sp. r, Pletirotomaria sp., Produchcs 

 newberryi c, Platyceras sp., Reticularia pseudolineata a, Rhyn- 

 chonella sp. r, Schizodus triang^daris r, Spirifer keokuk a, 

 Spiriferina depressa c, Spiriferina sp., Streblopteria sp. c, 

 Syringoihyris sp. r. 



The New Providence shale forms the lower portion of the hills 

 here and the beds of the streams. No fossils were found in it 

 save worm trails, which are everywhere abundant, and a single 

 specimen of Spirifer mo7"tond7itis , which was broken out of the 

 shelly sandstone in the bed of a small ravine about one mile 

 northeast of station K5B. 



The Muscatatuck Section. 



The outcrops included in this sedlion extend from the eastern 

 limit of the Devonian near Wirt station in Jefferson county to Ft. 

 Ritner at the eastern edge of the Harrodsburg limestone in Law- 

 rence county, a distance of about forty miles. 



The easternmost stations of this section are those at Lancaster, 

 on the west side of Big- creek. The bed of the creek here is in 

 the Upper Silurian rocks, while the upper part of the bluffs are 

 of Devonian limestone, full of fossil corals and brachiopods. 

 Just below Mr. George Ferris' house the coral beds are well 

 exposed. 



Station loB. — On the west bank of the creek just above the 

 bridge the following fossils were obtained: 



A try pa aspera r, Atrypa reticularis a, Glyptodesma occiden- 

 talc r, Onychodus sigtuoides c, Ort/iis ioicoisis a, Pharops 



