Maryland Geological Survey 



441 



Geological Range of Upper Devonlan Fauna in Maryland, Pennsylvania and New York. — Continued. 



SPECIES 



Maryland 



-< 



2 



>- 



EQ 



S5 

 H 



cu 



c 



3 



ClJ 



cS 

 I— 1 



New York 



S 

 0) 



s 



c 

 o 



S 



X 



o 

 « 



o 



1 



Jennings Formation 



B 

 _o 



ca 

 g 

 o 



c 

 o 



E 



c3 



6 



u 

 O 



QJ 

 C 

 41 



o 



Portage Format'n 



c 

 2 



ca 



B 

 t-* 

 o 

 b. 

 be 



B 

 3 



B 



6 



i 



S 

 o 



Woodmont 

 Member 



u 



B 



V 



V 



ca 

 Oh 



Chemung Member 



t-r 



QJ 



.O 



s 



<v 

 « 



3 



.a 



1 



Ithaca 

 Member 



E 



CJ 



•o 



en 



B 





Ithaca 

 Fauna 



Area east of Oakland 



c 

 o 



Centr'l 

 N. Y. 



0) 



c: 



s 



"3 

 £1 



o 



"3} 



3 



•g 



B 



o 



'S 



c 

 o 



N 



W) 



V 



M 



.2 



— 

 "3 



t 

 I 



3 

 S 



1 



o 



•o 

 ca 



5 



c 

 o 



tu 



e 



o 

 "a 



"3) 



3 

 V 



>, 



J5 



o 



'S 



g 



T3 



S 



C 

 c3 

 <U 



i- 



0) 



3 



V 



1.. 



C 



o 

 c 



§ 



> 



3 



01 



.o 



V 



a 

 o 



•3 



c 

 rt 



•a 

 s 



a) 

 1 



-3 



•3 



<v 

 ■+J 

 ca 



ti> 



B 

 o 



"3) 



5 

 u 



<u 



o. 



•3 

 <U 



XI 

 <U 

 B 

 o 



■s 



■o 



C8 



T) 



C 



ca 



fS 

 "ca 



M 



a, 

 P 



a 

 B 



u 



V 



■o 

 c 

 s 

 c 

 o 



u 

 o 



w 



i 



5 



MOLLUSCA—PELECYPODA.— Continued. 



Grammysia communis Hall 



Grammysia undata Hall ? 



Palasanatina angiista Hall ? 



Sphenotus contractu!? Hall 



Sphenotus sp 



Buchiola retrostriata (V. Buch.) 





* 

 « 



* 





# 



* 



* 







1 « 



+ 



« 



t 







* 



" 



* 



* 



* 

 « 



J 



• 

 « 

 « 



» 



? 



• 





4t 





* 



* 

 * 



* 

 ? 



* 



1 



1 • 



• 

 • 

 • 

 • 



*■ 



« 

 • 



• 

 * 



• 

 • 

 • 



« 



Buchiola mariae Clarke & Swartz 









Paracardium delicatulum Clarke 



Nucula corbuliformis Hall 



Nuculites sp 



Palaeoneilo constricta (Conrad) 



Palaeoneilo plana Hall 



Palaeoneilo petila Clarke 



Palasoneilo cf. maxima (Conrad) 



Palaeoneilo brevis Hall 



Palaeoneilo fllosa (Conrad) 



Palaeoneilo angnsta Hall 



Palaeoneilo crassa Clarke & Swartz 



Ijfda diversa Hall 



Leda sp 



Macrodon chemungensis Hall 



Ptorinea nodocosta Clarke & Swartz 



Ptorinea chemungensis (Conrad) 



Lumilicardium encrinitum Clarke 



Lunulicardiiim c.iTnbula Clarke & Swartz 



* 



* 



*• 



Ectenodesma birostratum Hall 



Liopteria bigsbyi Hall 



Liopteria sp. (near bigsbyi) 



Liopteria marylandica Clarke & Swartz 



Liopteria auriculata Clarke & Swartz 



Liopteria sp 



Leptodesina rogcrsi Hall 



Loptodesma lonsrispinum Hall 



Leptodcsma agassizi Hall 



Leptodesma medon Hall 



Leptodcsma naviforme Hall 



Leptodesma lichas Hall 



Leptodesma elongatum Clarke & Swartz 



Leptodesma sp 





t = abundant, t = common, § = rare, || = very rare, t = 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 Maryland (in pocket of this volume). 



