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the overlying gypsum is obscured at the bridges but is 

 well seen on the farther shore of the Avon, where 9 feet 

 (2-7 m.) of transitional beds of gypsiferous shaly limestone 

 carrying an extremely dwarfed fauna intervenes. The 

 Miller's Quarry limestone is abundantly fossiliferous with 

 Productids especially prominent. The gypsum above is 

 again flexed in a shallow syncline at Maxner's point, 

 preserving in its trough the Maxner's point dolomitic 

 limestone. The upper beds of the limestone are likewise 

 abundantly rich in fossils, especially in individuals of 

 Beecheria davidsoni, Dielasma sacculus, Pugnax sp., Par- 

 allelidon dawsoni, P. hardingi, and Nautilus avonensis. 

 Following is a list of the more important species occurring 

 in these Windsor sections: — 



Vermes. 



Cornulites? annulatus Beede. (Serpulites annulatus 

 Dawson.) 



Bryozoa. 



Rhombopora exilis Beede, {Stenopora exilis Dawson.) 

 Fenestella lyelli Dawson. 



Brachiopoda. 



Beecheria davidsoni Beede, (Athyris subtilita David- 

 son.) 



Dielasma sacculus Beede, (Terebratula sacculus David- 

 son.) 



Martinia glabra Beede, (Spirifera glabra Davidson). 



Spirifer cristatus Davidson. 



Camarophoria? globulinal Davidson. 



Rhynchonella pugnusl Davidson. 



R. ida Hartt. 



Productus semireticulatus Davidson. 



P. dawsoni Beede, (P. cora Davidson). 



Centronella anna Hartt. 



Pugnax sp. 



Pelecypoda. 



Aviculopecten acadicus Hartt. 

 A. debertianus Dawson. 

 A. lyelli Dawson. 

 A. simplex Dawson. 

 Edmondia harttii Dawson 



