FOSSILS FROM THE DAWSON AKROSE 273 



from the lower part of the Dawson arkose in the vicinity of the towns 

 of Monument and Sedalia. 



[No. 5837] Section 11, townsliii) 12 south, range G2 west, 1 mile southwest of 



Calhan, Colorado; estimatetl 300 feet above top of Laramie. 



Cwniis studeri ? Heer of Lesq, 



Palmocarpon commune ? Lesq. 



Palm, Sabalites ? sp. 



Populus nebra^ccnsis ? Newb. 



Ficus, type of F. planicostata Lesq. 



Vltis olriki ? Heer of Lesq. 



Artocarpus ? sp. 



Ficus laUfolia ? Lesq. Fragment. 



Ficus sp. 



Sapinlus ? sp. 



Age, Denver. 



[No. 5831] Section 3, township 14 south, range G5 west, 9 miles east of Colo- 

 rado Springs, 400 feet above top of Laramie. 

 Ficus sp., type of F. trinervis Kn., but not the same. 

 Cyperacites ? sp. 



Fungus (genus ? parasitic on Cyperacites ?) sp. 

 Geonomitcs tcnuiraclds Lesq. 

 Flahellaria coceniea Lesq. 

 Gigantic leaf, genus ? No margin. 

 Ficus tilicefoUa Al. Br. 

 Ficus sp., type of F. planicostata Lesq. 



Pteris erosa Lesq. 



Age, Denver. 



[No. 5835] Section 3, township 14 south, range 65 west, 9 miles east of Colo- 

 rado Springs, 500 feet above top of Laramie. 

 Platanus rliom'boidca Lesq. 

 Cinnamomum affine ? Lesq. 

 Ficus spectaMVis ? Lesq. 

 Rhamnus goldianus ? Lesq. 

 Ficus sp,, new. 5-ribbed, large. 

 BercJicmia multinervis. 

 Palmocarpon commune ? Lesq. 



Age, Denver. 



From a higher horizon, estimated to be about 1,000 feet above the 

 base of the Dawson arkose, the following collection of leaves was ob- 

 tained, concerning which Dr. Knowlton makes this statement: Lot No. 

 5836, *'so far as I am able to tell, appears in large measure to be new; 

 and, such being the case, it is difficult to place it. It is obviously not 

 Laramie, nor is there apparently a single form that is found in the beds 

 referred to the Denver. In some ways it slightly suggests the Green 

 Eiver, but this is too indefinite to be of much use." 



