287 Crown Point Section 2 i 



18. Rather thick layers (6-12 inches) of dove 

 colored, pure limestone having a conchoidal fraclure. 

 The middle two feet are almost black, but the top 

 and bottom of the zone are of the characleristic color 

 and pureness of the "Birdse^'e" limestone of the 

 Mohawk Valley. "Birdseyes" are common through- 

 out the five feet. 5 ft. 224 ft. 



. r Holopea sp. und. r Leperditia fabulites. 



r Murchisonia sp. und. c Phytopsis hibulosus. 



X Zygospira recu?'virostris. 



19. Fairly pure, heavy bedded, fine grained, 

 dark gra}- limestone with conchoidal fra(5lure. 7 ft. 231 ft. 

 rr VVhitella ventricosa. c Plectorthis plicatella. 



r Ctenodonta nasiita. r Asaphus platyceph- 



r Ciineamya szibtruncata. alus. 



c Ctenodonta levata. r Ccrmiriis pleurexa7i- 



r Macliirea logani. themus. 



rr Murchiso7iia gracilis. c Leperditia fabulites. 



c M. milleri. c L. canadensis var. 



r Pleurotoviaria stibcojiica. nana. ^ 



c Endoceras sp. und. rr Primita logani. 



r Rafinisquina alternata. c Monticiilipora lyco- 



r Strophoinena incurvata. perdon. 



c Streptolasnia cor^iic- 

 iilum. 



20. Impure, light gray, coanse grained, heav.y 

 bedded limestone containing many fossils. Top lay- 

 ers of the ledge. In the upper layers of this zone is 

 a very large specimen of Columnaria alveolata. 



2 ft. 6 in. 233 ft. 6 in. 



rr Ctenodonta nasnta. c Asaphus platyceph- 



r .Murchisonia milleri alus. 



X Fusispira subfusiforviis. r Illcrnus arHurus. 



X Endoceras sp. und. r /. americanus. 



