Maryland Geological Survey 



443 



Geological Range of Upper Devonian Fauna in Maryland, Pennsylvania and Nevv York. — Continued. 





SPECIES 



Maryland 



S 

 > 



e 



3 

 n! 

 fa 



OJ 



o 



rt 



Kew York 





.a 



S 



<u 



s 



1 



1 



K 



c 

 o 



eS 

 S 



i 



o 



Jennings Formation 



1 



s 



B 

 O 



S 



o 



d 



s 

 % 



V 



c 



0) 



O 



Portage Format'n 







u 



s 



<u 



<v 



c: 

 O 



Woodmont 

 Member 



£ 

 A! 



Chemung Member 



u 

 <u 

 Xl 



B 



a 



v 



a 

 u 

 3 

 .Q 



Ithaca 

 Member 



S 



OJ 



s 



c 

 o 



a 



1 

 to 



3 



.a 

 O 





C 

 S 



w 



iD 



P. 

 US 

 125 



Ithaca 

 Fauna 



Area east of Oakland 



<u 

 ■< 



•a 

 c 

 « 



3 



s 



Centr'l 

 N.Y. 



e 

 o 

 N 



0) 



s 



o 



.a 

 o 



"3) 



3 

 •g 



c 

 >> 



.a 



M 



o 



} 

 1 



G 



! 



1 



ca 



"3 



u 



P3 

 i 



3 

 O 



o 



■v 

 « 



0) 



s 

 B 



u 

 O 



'3 

 1 



"Si 



CJ 



C 



J3 

 O 



3 



■2 



.a 



s 



o 



c 



(S 



CJ 



3 



6 

 "Si 



5 



V 



u 

 3 



.Q 



c 

 o 



■s 



T3 



C 



■a 

 3 



01 

 .S 



'S 



i 



o 



'be 

 C 



o 

 o 



13 

 <U 



c 



T3 



a 

 a 



a 



■o 



0) 



c 



's 



<u 

 a. 

 c 



3 



o 



X 



to 



a; 

 oi 



5 



? 



159 

 160 

 161 

 162 

 163 

 164 

 165 

 166 



167 

 168 

 16;i 

 170 

 171 

 172 

 173 

 174 

 175 

 176 



77 

 178 

 1711 

 180 

 181 

 182 

 183 



84 

 185 

 186 

 187 



188 

 180 

 I'JO 

 91 

 192 

 193 



194 

 195 

 96 



MOLLUSCA— gastropoda.— Continued. 



Bellerophon sp 



Bucanopsis msra (Conrad) 



Straparollus marv'landicus Clarke & Swartz.... 



Phaenerotinus laxus (Hall) 



Euomphalus tios:a Hall 



C'ycloncma concinnuni Hall 



C^clonemina cienulistriata Clarke & Swartz.. 

 Cyclonemina crenulistriata var. obsolescens 



Clarke &, Swartz 



Cyclonpmina multistriata Clarke & Swartz 



Turbo coronula Clarke & Swartz 



Tiochoncina (Gyronema) liratum (Hall) 



Trochonema (G\Tonenia) sp 



Macroohilina pulchella Clarke & Swartz 



U>.\onenia hamiltoni^-' Hall 



Loxonoma teri'brum Hall 



Loxonema styliolum Hall 



Loxonema ? glabrum Clarke & Swartz 



Trachydomia prsciii-sor (Clarke) 



Holnpea rowei Clarke & Swartz 



Holnpea marylandica Clarke & Swartz 



Holopea humilis Clarke & Swartz 



Holopea ? sp 



Orthonychia prosseri Clarke & Swartz 



Orthonychia iinguiculata Clarke k Swartz 



Orthonychia sp 



Platyceras marylandicum Clarke & Swartz 



Platyceraa compressum Clarke & Swartz 



Platyceras sp 



Diaphorostoma lineatum (Conrad) 



mollusca-pteropoda. 



St yliolina fissurella (Hall) 



Tcntaculites desci=siis Clarke & Swartz 



Tentaculites .spiculus Hall 



Ooleolus tenuicinctiis Hall 



Hyolithe.«! aclis Hall 



Pharetrella tenebrosa Hall 



MOLLUSC A-CEPHALOPOD A . 



Orthoceras consortale Hall 



Orthoceras cf . demum Hall 



Ortlioceras fllosum Clarke 



■* 







■■ 



« 



1 



'i 



* 











■• 



'i 



« 



* 









'? 







* 

 • 









'" 





1 1 1 





+ = abundant, } = common, § = rare, 1| = very rare, H = related form, ** = compare. 



Tlie 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). 



