180 



BRITISH GRAPTOLITES. 



Cb 



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onver- 



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a 

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very sho 

 spinose 



zic-zac 

 curvatui 



1 



1 



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i 



1 1 



1 1 









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short, 



non- 



spinose 



curved, 



short, 

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 parallel 

 proxi- 

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 distally 



a 

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i 



1 1 



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c5 





fairly 1 

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1 



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SP 



1 



1 1 



1 1 





, 





















Is 



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very lo 

 spinos 



1 



1 



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1 



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1 1 



5 





long, 

 non- 



spinose ; 



straight 

 or 



slightly 



curved. 



1 



in 



- 



00 



1 



- 



strongly 

 curved ; 

 strongly 

 intro- 

 verted and 

 intro- 

 torted. 



pouch- 

 shaped, 

 i width of 

 stipe. 





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2 





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u 





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narrow, 



3 width of 

 stipe. 



f 



* 





fairly long, 

 straight 



in one 

 straight 

 line with 

 biserial 

 portion. 



rH 



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O 



7 



slightly 



curved ; 



introverted 



and intro- 



torted. 

























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S £vrf 





ri 









\ch- 

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widt 

 tipe. 





is 





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be 



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fV3 |<g . 



o 

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t» 















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fairly long, 

 spinose ; 



1 



a 

 a 



a 

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O 



7 



CI 



slightly 

 curved, 

 approxi- 

 mately 

 horizontal. 



wide and 



deep, 



f width of 



stipe. 











































o 



3 





very sho 



non- 



spinose 



straigh 



1 



1 



cv. 



s 



.SP § 



semicii 



cular, 



3 width 



stipe. 









fl 





















pes — 

 ortion 



portio 





o 





3 

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fl 









fsti 

 al p 



rial 





€ 





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> 



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laracters o 

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