Maryland Geological Survey 



439 



Geological Range of Upper Devonian Fauna in Maryland, Pennsylvania and New York. 





SPECIES 



Maryland 



Z 



> 



Zi 

 H 



a 

 c 

 3 

 a 



s 



a 



.a 



a 



New York 





B 



e 

 o 



S 

 » 



i 



o 



>, 



V 



c 



g 



Jennings Formation 



e 

 



a 



s 



b- 







b. 

 C 

 



B 



a 

 » 



a 

 



a 

 B 



C! 



<u 

 05 



Portage Format'n 







s 



be 



c 



3 

 g 



1 





B 

 (J 



a 



0) 



c 



a 



Woodmont 

 Member 



s 



CL4 



Chemung Member 



<v 



X 



I 

 c 



3 



Ithaca 

 Member 



0) 



B 



a 



C 





2 

 a 



Ithaca 

 Fauna 



Area east of Oakland 



a 



<; 



c 

 a 



a 



Centr'l 



N. Y. 











N 



B 



u 







1 







U 



3 



.s 

 y 



c 







13 





c 



! 

 1 



.2 



'3 

 



cu 

 K 



i 



3 

 C 

 



1 



■a 



3 



c 

 



s 







"3 



XI 







3 

 t> 



x: 

 

 3 



1 



XI 

 4) 



s 

 



a 



OJ 



a 



J3 

 OJ 

 





 u 



1 



GO 



(U 

 .O 

 V 



c 

 



c 

 a 



■a 

 3 

 a 



.S 

 a 



■S 

 ■3 



"a 



i 



<v 



C!J 



t-> 



g 







"be 



c 



g 



a 

 p< 

 P 



00 



•0 



tu 



X> 



0) 



c 

 



■s 



c 

 a 



■0 



a 



a 



GJ 



a 



■a 



V 



3 



"2 



5 

 c 



1 





a; 



3 



1 



2 

 3 



4 

 5 

 6 



7 



8 

 9 

 10 



11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 

 31 

 32 

 33 

 34 



CCELEXTERATA— ANTHOZOA. 



Zaplirentis marylandica Clarke & Swartz 



Zaphrent.is chemunffensis Clarke & Swartz 



Heliophyllum scrutarium Clarke & Swartz 



Favosites sp 



Aulopora repens Knorr & Walch 



Cladochonus humilis Clarke & Swartz 



echinodermata— asteroidea. 



Paleaster clarki Clarke & Swartz 



VERMES. 



Spirorbis gyms Clarke & Swartz 



Spirorbis sp 



Pteridichnites beseriatus Clarke & Swartz 



MOLLUSCOIDEA— BRACHIOPODA, 



Ling^la oherni Clarke & Swartz 



Lingula ligea Hall 



Lingula spatulata Vanuxem 



Lingula sp 



Orbiculoidea cf. media (Hall) 



Craniella hamiltoniae Hall 



Oraniella ? sp 



Crania sp 



Stropheodonta demissa (Conrad) 



Stropheodnnta maynardi Clarke & Swartz 



Leptostrophia perplana var. nervosa (Hall) 



Leptostrophia perplana var. alternata C. & S. . 



Leptostrophia interstrialis (Vanuxem) 



Douvillina cayiita (Hall) 



Douvillina ca>-uta var. eraciliora O. & S 



Douvillina arcuata (Hall) 



Stroplionella reversii (Hall) 



Strojihonella sp 



Scliurhertella chemimffensis (Conrad) 



Schuohertella elliptica Clarke & Swartz 



Scliuchertella ? ponderosa CTlarke & Swartz 



Chonetes lepidifnrniis Clarke & Swartz 



Chonetes scittilus Hall 



Chonetes oaklandensis Clarke & Swartz 



« 



n 

 ** 



•• 



* 



■f 





* 

 * 



* 



* 



't 



■J 

 't 



■• 



* 

 « 





'i 



* 



1 



"i 



# 



« 



ii 

 i 



« 



* 



* 



» 

 * 



* 



* 



1 



« 

 * 



* 

 * 



« 



* 

 • 



t — abundant. 



common, § = rare, 



very rare, H = related foi-m, ** = conipaie. 



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). 



