146 CRETACEOUS PALEONTOLOGY. 



FAUNA OF THE TINTON BEDS. 



The most complete fauna of the Tinton beds has been col- 

 lected from the exposures in the deep cut at Beers' Hill, where 

 fossils have been secured from several distinct beds. The as- 

 semblage of species in the different beds is somewhat different, 

 and in the number of localities recognized each of these beds is 

 considered separately. The various localities from which fossils 

 have been studied, with the several local faunas, are as follows : 



Locality no. From the typical exposure of the Tinton beds, 

 just below the mill at the village of Tinton Falls, the following; 

 species of fossils have been identified : 



PEIvECYPODA. 



Cucullaea sp. 



Axinea subaustralis d'Orb. 



Ostrea me sent eric a Mort. 



Gryphaea sp. 



Pecten venustus Mort. 



Pec ten simplicum Con. 



Dianchora echinata Mort. 



Cardium sp. 



GASTROPODA. 



Margarita abyssima (Gabb). 

 Pyropsis trochiformis (Tuom.). 



CEPHALOPODA. 



Sphenodiscus lobatus (Tuom.). 



CRUSTACEA. 



Callianassa mortoni Pilsb. 

 Callianassa conradi Pilsb. 



One of the best exposures of the Tinton beds, and the locality 

 which has furnished the most abundant fauna, is in the deep' 



