122 



S 56 i. Impure, dark colored, fine-grained limestone, in imperfect 

 layers nine to twenty-three inches thick. A band containing numerous 

 shells of a small Chonetes occurs about twenty inches below 

 the top 7 feet, 9 inches.. 



Heliophyllum sp. r, 

 A try pa reticularis c, 

 A try pa spitwsa r, 

 Chonetes cf. piisillus a, 

 Cranielta hamiHona£ r, 

 Leptostrvphia perplana r, 

 Pentamerella arata r, 

 Pholidops hamiltonae r, 

 Pholidostrophia iowensis a, 

 Productella spinnlicosta r, 

 Retictilaria fimbriata r, 

 Reticularia fimbriata var. r, 

 Rhipidomella vanxixemi a, 

 Schicoplwria propinqiia a, 

 Schuchertella chemungensis pectinacea r, 

 Spirifer sp. r, 



Schuchertella chemungensis perversa r, 

 Spirifer duodenarius r. 



Spirifer cf. grieri r, 

 Spirifen 7'ari casus c, 

 Strophalosia truncata r, 

 Strophcodonta concaia c, 

 Stropheodonta crebristriata r, 

 Strophcodonta inaequistriata r, 

 Stropheodonta patersoni c, 

 Cf. Aviculopecten ignotus r, 

 Callonema lichas r, 

 Loxonema terebrum r, 

 Platycems blatohleyi c, 

 Ptatyceras carinatum r, 

 Platyostoma lineata r, 

 Gomphoceras sp. r, 

 Phacops sp. a. 



S 56 j. Impure, gray limestone, with few fossils ... .3 feet, 4 inches. 



Camarotoechia Carolina r. 



Spirifer cf. intermedins r. 



S 56 k. Dark colored, impure limestone, in imperfect layers four to 

 ten inches thick . . . . : 2 feet, 3 inches. 



Atrypa reticularis a, 

 Camarotoechia Carolina c, 

 Chonetes mucronatus a, 

 Cirhna hamiltonensis c, 

 LeptostrKiphia perplana c, 

 Nucleospira concinna c, 

 Pholidostrophia iowensis a, 

 Productella spinnlicosta r, 

 Rhipidomella ''anuxcini c, 

 Schizophoria propinqua a, 

 Schuchertella chemungensis arctistriata c, 



c, 

 Spirifer duodenarius r, 

 Spirifer raricostus r, 

 Spirifery zaricosus c, 

 Spirifer sp. r, 

 Stroplieodonta concava a, 

 Stroftheodonta inaequistriata c, 

 Stropheodonta inaequistriata var. a, 



S 56 1. Bed of impure limestone, in layers eight to twelve- 

 inches thick 1 foot, 8 inches. 



Stropheodonta patersoni a, 

 Strophonella ampla r, 

 Aviculopecten sp. r, 

 Aviculopecten terminalis r, 

 Conocardium cuncus var. r, 

 Bellerophon sp. r, 

 Callonema lichas r, 

 Euomphalus decewi r, 

 Murchisonia sp. r, 

 Orthonychia dentalia r, 

 Platyceras carinatum r, 

 Dalmanites sp. r 



Atrypa aspera r, 

 Atrypa reticularis r, 

 Camarotoechia horsfordi c, 

 Chonetes lineatus c, 

 Chonetes yandellanus r, 

 Leptostro^hia perplana c, 

 Meristella rostrata r, 

 Productella spinnlicosta r, 

 Rhipidomella vanuxemi c. 



Strophcodonta cf. callosa r, 

 Strophcodonta concava r, 

 Strvpheodonta inaequistriata 

 Schizophoria propinqua c, 

 Spirifer sp. r, 

 Spirifer varicosus c, 

 Platyceras carinatum r, 

 Phacops cristata r, 



