Table I. — Grartolites 



from Far, Middle, and Near Gills. 







Species and Varieties. 



C = very common, 

 c = common. 

 R = very rare, 

 r = rare. 



Zone of 



Cyrtograptus 



murch isoni. 



C x . 



Zone of 

 Monograptus 

 riccartonensis 



Co. 



Zone of 



Cyrtograptus 



rigidus. 



c 3 . 



Zone of 



Cyrtograptus 



lundgreni. 



c 4 . 



C3 



Middle. 

 Near. 



Far. 

 Middle. 





Far. 

 Middle. 





Far. 

 Middle. 



i il 



4) 



Cyrtograptus carruthersi Lapw 



Cyrtograptus lundgreni Tullb 



Cyrto yrapt us linnarssoni Lapw 



Cyrtograptus murcli isoni Carr 



c 











C C 



... r 



c c 

 c c 



c c 



c c 



... 



... i ... 



? 

 C 



c 



C 



c 



c 



c 



R 



C 



C 



c 

 C 



c 



c 



c 



c 

 c 



c 

 c 



c 

 c 



c 



c 



... ! C 



c c 

 c c 



c 

 C 



c 



c 



*c 

 c 



Cyrtograptus mwchisoni, var. crassius- 

 culus Tullb 



.'.'.' R 



r 



... C C 



'.'.'. c c 



... C | c 

 ... C j c 



... r j ... 



Cyrtograptus rigid us Tullb 



Monograptusflcmiugii Salt. var. a Files . 



55 55 55 55 P 55 

 55 55 55 55 ~/ 55 

 55 55 55 ,5 £ 55 



Monograptus flex il is Files 



; Monograptus capillaceus Tullb 



1 Monograptus dubius Suess 



Monograptus pviodon Bronn 



C 



c 



Monograptus riccartonensis Lapw 



Monograptus h isingeri Carr. var 



Monograptus vomerinusNich.xax. a Elles 



55 55 55 55 P 55 



-Retiolites geinitzianus Barr 



Retiolites spinosus Wood 





... , 



c 







Table II. — Graptolites 



FROM BlUECASTER GlLLS. 











; 



Zone of 



Zone of 1 











Zone of 





Cyrto- 



Mono- 1 



Zone of 





Cyrto- 





graptus 



graptus Cyrtograptus rigidus. 



graptus 



Species and Varieties. 



mtirchi- 

 soni. 



riccar- 

 tonensis. 













lund- 

 greni. 



C = very common . 



Ci- 



C,. 







c 3 . 







c 4 . 







^ 















s 









r« 















r^ 



c = common. 



1 o 





o 















13 



R = very rare. 



CO 





GO 















CO 



r = rare. 



^ fc 



O . 





<J 



ffl 



H 



Ph 



c3 



H 







P5 1 r*S 



zz 



r^ 



r=j 



:=j 



pz: 



r3 



pz| 



pj 



r^ 





6 j s 



O 



m 



O 



O 



O 



S3 



& 



c3 



H 



Cyrtograptus linnarssoni Lapw 













... 





C 









c 



c 





















Cyrtograptus murchisoni, var. crassms- 



























c 













... 



c 





C 



c 







Cyrtograptus rigidus Tullb 



Monograptus flemingii Salt. var. a Elles ... 











c 



c 



c 



c 























c 



c 









55 5, ,5 55 £ „ ... 











R 











c 



C 



Monograptus flexilis Elles 













... 





C 



c 







Monograptus dubius Suess 







C 



c 



C 



c 1 





C 



c 









c 



r 









... 1 













Monograptus riccartonensis Lapw 







c 



c 

















Monograptus liisingeri Carr. var 









c 



c 







c 



c 







Monograptus vomer inus Nicb. var. « Elles . . . 







c 













... 







5! 55 55 55 P 55 

















r 



C 







Retiolites geinitzianus Barr 



c 



c 















1 









