Maryland Geological Survey 



317 



much of the district and have compared, step by step as the work has pro- 

 ceeded, the various physical facts relating to the stratigraphy and struc- 

 ture of the several formations. More recently the junior authors of this 

 chapter have engaged in critical studies of the floras and faunas. 



COMPARATIVE TABLE OF MARYLAND AND NEW JERSEY' 

 UPPER CRETACEOUS FORMATIONS 



Maryland and Delaware 



New Jersey 





Manasquan 



Rancocas 



C Vincentown 

 Rancocas I 



[_ Hornerstown 



Monmouth 



f TlNTON 

 MONMOUTH \ REDBANK 



Nate sink 

 I Mt. Laurel 



M ATA WAN 



Mat a wan 



Wenonah 



Marshalltown 



Englishtown 



Woodbury 



Merchantville 



Magothy 



Magothy 



Raritan 



Raritan 





The Earitan flora as developed in the Maryland area comprises only 

 21 species including 2 ferns, 2 cycadophytes, 1 conifer, and 16 dicotyle- 

 dons. The most abundant forms, due in a measure to their maceration- 

 resisting character, are Aspidiophyllum, Protophyllum, Platanus, and 

 Araliopsoides. Three of the 21 species are peculiar to the Maryland 

 Earitan. Ten of the species are common to the Earitan of the New Jersey 

 area, while only 4 are found in the overlying Magothy formation through- 

 out its whole extent. Only a single form, the very wide-ranging and prob- 

 ably composite Podozamites lanceolatus, ranges into the Earitan from the 

 Lower Cretaceous. 

 21 



