145 Devonian of Southkrn Indiana 17 



Platyostovia lineatuvi v2ir.callosum r, Prodicndla subaculcaia vzx.cat- 

 a^-aHa r, Proehis crassimarginatus , Rhynchonella tethys r, Spirifer 

 aciiminatus c, Spirifer arflisegmcntus r. Spirifer segmeyihis r, Spir- 

 ifer varicosus r, Streptorhyiichiis arflostriatus r, Strophcodonta dc- 

 viissa a, Stropheodoyita hemispherica o., Stropheodonta pcrplana o.. 



Lexington. — In the vicinity of Lexington the Sellersburg beds 

 and the New Aiban}^ shale are exposed and afford excellent op- 

 portunities for collecting. The upper eight or ten feet of the 

 beds just below the shale are very silicious, almost a sandstone. 

 On exposed slopes the fossils from these beds weather out in an 

 excellent state of preservation. Diredlly below these silicious 

 beds is a blue limestone, replete with Orthis vamixemi and Orthis 

 striahda. I obtained the following species from these beds at a 

 small q«arry a quarter of a mile north of the railroad station. 



Station 12 A. — 



Orthis striatula a, Orthis vanuxemi a, Spirifer byrnesi c, Spiri- 

 fer eurutei7ies c, Stropheodo7ita hemispherica c. 



Station 12A' . — Just below these Orthis beds is the Jefferson- 

 ville limestone, in which the more common species at this quarry 

 are the following: 



Platyceras ereB7cvi r, Spirifer acuminatus c, Stiflopora sp., 

 Stropheodonta demissa c, Stropheodonta hemispherica a. 



Station 12B' . — From the Sellersburg beds just below the New 

 Albany shale, a few rods northeast of the railroad station at Lex- 

 ington, the following species were secured: 



Chonetes sp., Chonetes yandellanus a, Cystiphyllum sp.?. Phacops 

 rana r, Proetus canaliculatus f r, Roemerella grandis r, Spirifer 

 oiveni c, Stropheodonta demissa c, Sti5lopora sp. c, Tropidoleptus 

 carina ins a. 



Station 12B" . — From the Sellersburg beds one-half mile .south 

 of the railroad station, just east of the track, the following spe- 

 cies were collected: 



Athyris vitiatns r, Atrypa reticularis c, Aulopora sp. r, Camar- 

 otocchia tethys ? r, Chcetetes arbuscuhis f r, Coleohis aciailum, Hyo- 

 lithessp., Macrocheilns carinatiis r, Macrochilina n. sp, r, Mia'o- 

 cyclas sp. c, Modiomorpha concentrica r, Paracyclas ellipticus r, 

 Spirifer byrnesi a, Spirifer euriiteines r, Spirifer segmentiis f r, 

 Spirifer varicosus a. 



