U.S GEOLOGICAL SURVEY 



PROFESSIONAL PAPER 81 PLATE XII 



New Jersey 



Raiaoasi 



Eustern Gulf region 



IZ5 1 



Monmouth . 



Magotby 

 Ran tan 



■ Exogyra costaXa Say 

 Exoff>fr<i coxtala var. canallata v 



- ExrJgyra pondfrosa Roomer 



■ - Ezagyra costafi Say 



- - Exonyra cantata var." canccilata var. nov 

 — Exogi/ra pmderasa vur, crraticantata v: 

 -■-Exoffi/ra pondcroaa Roemer 



(a) Including nonchaJky equivalents in eastern 

 Alabama, western Georgia, northern Missis- 

 sippi, and western Tennessee 



(6) Tombigbcc sand member of Eutaw formation 



- -Ejogyra costata Say 



—Exogym cantata var. eoit&Ulala var. nov. 



Arkadclphia 



N&catoch 



" Marlbrpok . 



Annona 

 100' 



Brownstown 

 wo' 



Bingen 





---Eroff 









tExngj/ra poni/ermso var. crratictutata var. nov. 



! 



- £*>m 







---Exogyra upatoitmria sp. nov. 



; - -Exog 









Ei'xjltm riwIo/aSay 



Erogyra costaii var. cancttiata var. r 



Exogyra pandemia Roemer 



Navarro 



Taylor 

 300 ' 



_J 



sso' 





Eagle Foni^ ■ 





Woodbine 





-Emgyra cantata Say 



- - Exogi/ni pandemia Roemer 



RANGES IN THE ATLANTIC AND GULF COASTAL PLAJN OF THE SPECIES AND VARIETIES OF RXOGYRA DESCRIBED TN THIS PAPER 



