MAKYLAXI) GEOLOGICAL SURVEY. 



PRINCE GEORGE S COLTXTY, PLATE VU 



Vll- 



WS SHOWING ClIARAtTEriSTIC FoSSlLS OF THE EOCEXE OF PKIXCE GEORGE'S CoX'XTY. 



Fig. 10. 



TntBINOLIA A(_'rTIGOSTATA VMUHliail . 



— Carpolithcs MAUYLAXDICrs Ilcillicl;. 

 — Meretrix ovata var pyga CDiirad. 

 — Modiolus alabamensis Aldrich. 

 — Ostrea compressirostra Say. 



GLOBIGERINA B U L L O I D E S iTOlll. 



(Greatly enlarged). 



, 8. — Cra.ssatellites alaeformis (Con- 

 rad). 



— Strepsidi-r.\ subscalarina Ileilprin. 



Calyptkaphorus TiuxiiniFKRUs Con- 

 rad var. 

 Fig. 11. — CORBULA aldrichi Meyer. 



I'^IG. 1:;. VENERICARDIA PLAXICOSTA VAR REGIA 



Conrad. 

 Fii!. I-'!. — PLEfROTOMA TYsoxi Clark and 



Martin. 

 Fig. 14. — Dosixiop.sis lenticolaris (Rogers). 

 Fig. 1."i. — Cirn.i.AEA gigaxtea Conrad. 

 Fig. 1(! — Tirriti:i,i.a mortoxi Conrad. 



