lOO 



BULLETIN OF THE LABORATORIES 



OHIO. 



NAME. 

 Palaeoneilo allorismiformis. 



Palaeoneilo attenuata 



Area ornata 



Goniodon ohioensis 



Pholadella newberryi 



Conocardium pulchellum __ 



Loxonema yandellana 



Cyclonema leavenvvorthana. 



Cyclonema strigillata 



Murcliisonia quadricincta_. 



Naticopsis sp 



Euomphalus latus 



Euomphalus spirorbis 



Hellerophon cyrtolites 



Bellerophon galer.culatus _. 



Bellerophon sp 



Bellerophon perelegans 



Platyceras hertzeri 



Platyceras haliotoides 



Platyceras bivolve 



Platyceras paralium? 



Dentalium granvillensis 



Goniatiies lyoni 



Goniatites 



Conularia newberryi 



Conularia niicronema 



Conularia byblis 



Stictopora striata 



elsewh're. 



Michig-an. 



Iowa. 



sp n. 

 sp. n. 



sp. n. 



sp. n. 



Devonian. 



If we examine the above table candidly we discover at once that 

 our suspicion that the Waverly is not homogeneous is abundantly sub- 

 stantiated, and not less noticeable is the difference in habitus between 

 these assemblages. The lines chosen as the oudines of our divisions 

 were selected because they mark shore deposits and thus are transition 

 zones, as the deposits of a progressing or retreating littoral zone must 

 always be with regard to the sea-basin deposits formed before and after 

 the fluctuation in level producing the movement. Certainly no other 

 lines will prove more convenient in Licking county, though all such 

 zones may be arbitrary as regards other areas. Now in number I, ex- 

 tending say loo feet below congl. I, the fauna, as so far worked, pre- 

 sents about the following relations : Sj^ecies of carboniferous habit, 2 

 or 3 ; species with decidedly Devonian habit (often closely related to 

 Hamilton species), 25; species not found outside this zone or if so in 

 horizons still under discussion, 30. In No II, embracing all between 

 congl. I and II, species with carboniferous habit, possibly 9; species 

 with Devonian affinities (often Chemung species) 12; species which 



