306 [Jan. 17, 



has led me to refer all the fossiliferous formations of New Jersey 

 to that part of the European series which ranges from the Maes- 

 tricht beds to the gault inclusive. 



North Carolina. 



Of the same age are certain strata in North Carolina, at a place 

 called Lewis's Creek near South Washington, forty miles north of 

 Wilmington, and 340 geographical miles south-west of New Jersey, 

 where I found Belemnites mucronatus, Ostrea vesicularis, 0. sub- 

 spatulata (a remarkable and new species figured in the Appendix), 

 Cellepora tubulata, and other fossils. 



The association of Cellepora tubulata, which abounds in the 

 upper cretaceous formation of New Jersey at Timber Creek with 

 Belemnites mucronatus in this locality of South Carolina, is import- 

 ant, as helping to show the near relation of the coralline limestone 

 of New Jersey to the green sand containing Belemnites. 



Georgia. 



Some fossils have been communicated to me by Dr. Cotting, from 

 Georgia, which make it probable that there are cretaceous strata 

 there, lower than those of New Jersey ; as among them are a Pho- 

 ladomya and an Ammonite; both of which Mr. Forbes finds to be 

 closely allied to certain Neocomien species from Neuchatel. 



In the collection of Mr. Conrad, from Alabama, I saw a species 

 of Hippurite, derived from the cretaceous strata of that State, which 

 I believe is the only example of any fossil of the Rudist family de- 

 rived from the cretaceous rocks of North America. It affords an- 

 other point of analogy between the cretaceous fauna co-existing on 

 opposite sides of the Atlantic. 



It is interesting to find, as the result of this investigation, that 

 the marine fauna, whether vertebrate or invertebrate, testaceous 

 or zoophytic, was divided at the remote epoch under consideration, 

 as it is now, into distinct geographical provinces, although the 

 geologist may every where recognise the cretaceous type, whether 

 in Europe or America (and I might add India). This peculiar type 

 exhibits the preponderating influence of a vast combination of cir- 

 cumstances prevailing at one period throughout the globe, circum- 

 stances dependent on the state of the physical geography, climate, 

 and organic world, in the period immediately preceding, together 

 with a variety of other conditions. 



