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Hemerae. 



(Approximate 



diameter in 



mm. of largest 



ammonite species 



therein.) 



Phricodoceras 



(428). 



leckenbyi 



(380). 



aplanatum 

 (150). 



macdonnellii 

 (75). 



raricostatoides 



(95). 

 bispvnigeriim 



(70). 



subplanicosta 



(50). 



densinodus 



(110). 

 Armatoids 

 (50). 



1st Echioceras 



(50). 

 lymense 



(165). 

 fia dstochiceras 



(380). 

 Gleviceras 



(450). 



polyophyllnm 



(135). 

 oxynotum 



(300). 



biferum 



' (50). 



simpsont 

 (200). 

 Gagaticeras 

 '(50). 



lacuna ta 



(50). 

 subpolita 



(50). 



denotatus 

 (200). 





O 



o 



o 



o 



o 



7T> 



in 



o 



in 



o 



in 



U5 



* 



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CO 



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00 



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CsJ - — 



