442 



The Upper Dkvoxian Deposits of Maryland 



Geological Range of Upper De\'onian Fauna in Maryland, Pennsylvania and New York. — Continued. 



SPECIES 



Mabtland 1 



-<i 

 t- 

 a 



Se 

 H 

 Oh 



d 



c 



3 

 d 



d 



V 



d 



.3 



h- ( 



New York 



u 



a» 



.0 

 B 



S 

 a 

 



B 



iS 



c 

 



a 

 S 



>> 



<u 

 c 

 B 



Jennings Formation 



e 

 



u 



S 

 



1 



c 

 



a 

 B 



1 



OJ 

 OJ 







Portage Format'n 



e 

 



d 



s 



u 



a 

 3 



a 

 6 



.0 



(U 



i 

 



Woodmont 

 Member 



s 



oJ 

 0) 



Chemung Member 



.0 

 S 



Ithaca 

 Member 



"3 



c 



B 

 3 



OJ 



"5. 



Ithaca 

 Fauna 



Area east of Oakland 



d 



■a 

 c 



d 



Centr'l 

 N. Y. 



1 



i 







1 



'bo 



m 



c 



!>> 

 .3 

 1- 

 



3 



0) 





 N 



v 



"3 



'■S 

 i 



3 

 C 

 



.C 

 

 



■3 

 c« 



3 



C 

 

 SI 



1 







"3 



i 



3 



•g 



c 



I" 







13 



CO 



'O 

 <u 



% 







■a 



s 



-a 

 a 



cs 



rt 



•s 



u 







a 

 ■« 

 at 



B 

 



"be 

 C 

 

 



V 



& 







rs 



GJ 



.Q 



s 







c 



d 

 •0 



a 

 « 



a> 



•a 

 ■a 



i 



0} 



t- 



<u 



s 



'be 



c 

 



CJ 



§ 



t3 



■a 



.Q 



I 



•0 



d 



-3 

 S 

 d 



OJ 



15 

 "S 



1 



■a 

 a> 



CJ 



■0 

 c 



3 

 



'u 







w 



1 

 1 



6 



MOLLUSCA—PELECYPODA.— (Continued. 



Goi>senetia sp 



Actinopteria cf. t'psilon Hall 



1 









» 

 « 





§ 











•; 



* 



'i 



'* 



• 

 * 



• 





*« 



*? 



« 



* 



* 



* 

 « 



« 



« 



« 

 • 



« 

 * 



Ptychopteria sp 



Ptychodesma ? sp 



Schizodus chemunprensis (Conrad) ? 



Sohizodiis chemunffensis var. quadrangularis H. 



Schizodus ohemi Clarke & Swartz 



Schizodus oherni var 



Schizodus frostbursrensis Clarke & Swartz 



Schizodus trigonalis Clarke & Swartz 



Aviciilopcctcn cf. eancellatus Hall 



Aviculoperten ? sp 



Lyriopooten tricostatus (Vaniixem) 



Modiomorpha siibanprulata Hall var 



Goniophora hamiltonensi* Hall 



Goniophcira truncata Hall 



Goniophora gUuca Hall 



Cyprirardella bellistriata (Conrad) 



Cypricardella marylandica Olarke & Swartz 



(Jypricardella nian-Iandica ? var. (very small). 



Cypricardella frrejjaria (Hall) 



C^'pricardella gretraria var 



Cypricardella tenuistriata (Hall) 



CVprioardella nitidula CTlarke & Swartz 



C^ricardella cumberlandiae Clarke & Swartz.. 



Cypricardella cras^a Clarke and Swartz 



C^(T5ricardella sp 



Cypricardinia elegans Clarke k Swartz 



Cypricardinia elc<?ans var. angusta C. & S 



Paracyclas marylandica Clarke & Swartz 



Paracyclas sp 



MOLLUSCA— GASTROPODA. 



Pleurotomaria sp 



Pleurotomaria (Gyroma) capillaria Conrad 



Murchisonia sp 



Hormatoma bistriata Clarke & Swartz 



Ectomaria m:irvlandica Clarke k Swartz 



Ectomaria eccle<:ia> (Harke k Swartz 



Bellerophon nactnides Clarke k Swartz 



Bellcrophon clarki Clarke k Swartz 











• 



* 

 * 



■§ 

 'li 





* 





t = abundant, { = common, § = rare, ll = very rare, H = related form, ** = compare. 

 The numbers preceding the names of the fossils refer to the occurrences of these species as shown upon the chart of columnar 

 sections of the Jennings Formation of Marj-land (in pocket of this volume). 



