146 



PALEONTOLOGY OF NEW YORK. 



LIST OF DEVONIAN FOSSILS. Etc. (Continued). 



SI'ECIES. 



Upper Hi M 



eruergUr'p. 



Oastkbopoba (Continued). 

 Pleui-otomaria imitator .... 

 Loxonema hydraulicum 

 L lvtistriatura .... 



L. la-viusculuin .... 



Naticopsis la-vis 



Turbo Shuraardii .... 



Bellerophon Lyra 



B. Leda 



B. patulua 



Ptrropoda. 

 Coleoprion tenuicinctum ' 



Cephalopoda. 

 Gomphoceras turbiniforme 

 tiimiatites discoideus, v. Ohiensis 



Ckbstacea. 

 Phacops bufo, v. ran a 

 Dalinanites myrmecophorus 

 D. 

 D. 

 D. 

 D. 

 D. 

 D. 



ancbiops 



jEgeria 



Helena 



selenurus .... 



Calypso . . . . 



Pleione, representing D. Bootbi 

 Proetus crassimarginatus 

 P. canaliculatus 



Hydraulic 



A Kncrinul 

 l.lmesi 



Hamilton 

 Group, N.Y, 



Chemung 



(in. up, N.Y. 



The above list of fossils is far from being complete ; but at the present 

 time we have not the means of perfecting it. When once the facts are recog- 

 nized, and the position of these beds acknowledged, they will be studied as a 

 distinct formation, and the fossils separated from those of the beds below, with 

 which they have hitherto been confounded. 



It should be remembered that the facts above stated, and the fossils enu- 

 merated, have been derived from a single locality — the Falls of the Ohio river. 

 Elsewhere, in Kentucky and Indiana, the same conditions exist and the same 

 species of fossils are known. In the State of Ohio similar conditions may be 



1 This fossil, which is apparently identical with the New York species, is quite common in the sam<- bed 

 with Chonetes I 'andeUaaa, at the Falls of the Ohio. Messrs. Yandkll and Suumakd, in speaking of the "silice" 

 ous crust," above the waterlime, gay : " In this crust we find a small Orthoceratite, two and sometimes three 

 inches in length, with very thin septa. We have not been able to detect the. position of the syphon. It is 

 always siliceous." This " small Orthoceratite " is unquestionably the Coleoprion, cited above ; and the slew ler 

 einctie were very naturally regarded as the septa. 



