289 



Crown Point Section 



23 



24. Impure, light colored, coarse grained layers 

 grading into a black, fine grained limestone with 

 conchoidal fradlure. Contains some chert. 6 ft. 2 in. 255 ft. 10 in. 



r Murchisonia milleri. 



rr Raphistoma sp. und. 



c Endoceras sp. und. nana. 



a Leperditia. fabulites. 

 a L. canade7isis var. 



c Rafinisqidna alternata. 

 a Strophoviena inciwvata. 

 rr Dalmanella testudinaria. 

 a Zygospira recut'virostris. 

 c Rhynchotrema incequivalve. 

 rr Dinorthis pe5linella. 

 c Ple5lorthis plicatella. 

 c Stifiopora elegantula. 

 c Sfj'omatocerium rogosian. 

 a Moiiticidipora lycoperdon. 



c Asaphus platyceph- 



aliis. 

 a Dabnanites calliceph-. 



ahis. 

 c Z?. eboraceus. 

 rr IllcEtius ariluncs. 

 r Bathyurus spiniger. 

 c Cerauriis pleicrexan- 



thenius. 

 c Streptolasma cornicu- 



luni. 



25. Heavy bedded, black, fine grained lime- 

 stone with conchoidal fracfture, passing into a coarser 

 magnesian limestone. Forms the top layers of the 

 old black marble quarry. 6 ft. 7 in. 262 ft. 



5 111' 



r Ctenodonta nasiita. 

 r C. levata. 



rr Raphistoma leyiticulare. 

 r Murchisonia milleri. 

 c AsapJuis platycephalus. 



c Strophomena incur- 



vata. 

 c Zygospira recurviros- 



tris. 

 r Stromatoccri^im rogo- 



sum. 



26. Dark, bluish gray, heavy bedded, impure 

 limestone containing few fossils. 6 ft. 9 in. 269 ft. 



rr Maclurea cf. affinis. r Illccnus aniericaniis. 



r Ctenodonta levata. c Monticulipora lyco- 



r Strophomena incurvata. perdon. 



