572 ME60Z01C FLUKAS OF LWriEl) STATES, 



FOSSIL I'l.AXTS FKOM BKOAD t'KEKK. 



[PL LXXX, No. 2.] 



Thp rock material from Broad Creek is a dark porous muck made 

 up cliiefly of comminuted ^•egeta]^le matter. On the labels the nge is 

 given as Patuxent. The collection was made bv Mr. Bibbins for the 

 \hiryland Geological Survey in Septemlier, 1896. The plants are very 

 imperfectly preserved, from long exposure. The number of determina- 

 ble specimens is small. The following species are foinid here: 



Abietites angusticarpus Font. ? 1 specimen. 



('la(lo|)h!ebis Browniana (Dunk.) Sew. 1 1 specimen. 



Cladophlebis distans Font '_ 1 specimen. 



These plants all come in the \'irginia Potomac in the Rappahan- 

 nock and James River series. They are insufficient to prove the age 

 of the beds containing them, but their evidence, such as it is, indicates 

 that the strata at Broad Creek are of the same age and hence agree 

 with those of Springfield. 



A specimen of indurated white grit rock, given on the label as com- 

 ing from "Wanna's Broad Creek clay," "base of the Potomac," shows 

 nothing determinable. 



Fossil, PI,A\TS FKOM Pl.l >l ( KFKK. 



[PL LXXX, No. 1(L] 



A massive ferruginous sandstone from Phmi Creek, Cecil County, 

 Patapsco ? formation, gives some vegetable remains that are not 

 determinable. 



FOSSIL I'LAMS KliOJI Ml 1)1) V (KEEK. 



[PL LXXX, No. 15.] 



Akaucarites virginicus Fontaine. 



PL CXIX, Fig. 8. 



1889. Araucaritefi inrginicus Font.: Potomac Flora (Monogr. U. S. GeoL Surv., 

 VoL XV), p. 263, pL cxxxiv, fig. 7. 



Mudd}' Creek, Cecil County, yields a single specimen. It is an 

 imprint made by a portion of a cone that was once embedded in ash-gray 

 shale but has since fallen out . 1 1 is imperfectly preserved and is probably 

 a cone of Araucarites virginicus. As this fossil, in the Virginia Potomac, 



