Maeylaot) Geological Sukvey 325 



The floras and faunas possess much in common, many identical and 

 closely related species ranging throughout the entire district to the Gulf. 



Compared with the floras of the South Atlantic and eastern Gulf Upper 

 Cretaceous the Earitan flora of Maryland has six species, Asplenium 

 diclcsonianum, Podozamites marginatum, Salix lesquereuxii, Cinnamomum 

 newberryi, Sassafras acutilobum and Diospyros primmva, common to the 

 Tuscaloosa formation; three, Cinnamomum newberryi, Ficus ovatifolia 

 and Salix lesquereuxii, common to the Eutaw formation; and five, Cin- 

 namomum newberryi, Diospyros primmva, Ficus ovatifolia, Podozamites 

 lanceolatus and Salix lesquereuxii, common to the Black Creek formation. 

 In considering the Earitan flora from New Jersey to Maryland as a whole 

 it is obvious that its latest expression in beds of Upper Earitan age, 

 namely, those in the vicinity of South Amboy, points to the synchroneity 

 of the uppermost Earitan with the lower Tuscaloosa of the eastern Gulf 

 area. 



The Magothy flora is much more closely related to these more southern 

 floras. Compared with the flora of the Black Creek formation of North 

 and South Carolina, the Magothy of Maryland has thirty-four common 

 species and many additional closely related forms. Some of the common 

 forms, as for example, Araucaria bladensis, Protophyllocladus lobatus, 

 Andromeda novm-cmsarea, etc., are highly characteristic of the two for- 

 mations, and there can be no question of the synchroneity of the Magothy 

 with a part of the Black Creek formation. 



In the eastern Gulf area fossil plants are abundant in the initial Upper 

 Cretaceous or Tuscaloosa formation, frequent in the basal beds of the 

 overlying Eutaw formation, and practically absent in the Eipley and 

 Selma formations. The Tuscaloosa formation embraces a great thickness 

 of deposits and is upwards of 1000 feet thick in western Alabama. It 

 contains a large flora very similar in fades to that of the Magothy forma- 

 tion of the North Atlantic Coastal Plain. Forty per cent of the Magothy 

 flora is common to the Tuscaloosa, among the more characteristic forms 

 being: Andromeda novw-cwsarew, Bauhinia marylandica, Citrophyllum 

 aligerum, Diospyros rotundifolia, Ficus daphnogenoides, Ficus irausiana, 

 Geinitzia formosa, Laurophyllum nervillosum, Magnolia capellini, Mag- 



