524: E. M. Kindle — Section at Cape Thompson, Alaska. 



determination of the age of the beds. They appear to be 

 Mississippian and probably represent a stage in the lower part 

 of this division. They may even come from the basal member 

 thereof." 



These plants evidently belong to the same horizon as that 

 from which Collier obtained Carboniferous plants at Cape Lis- 

 burne. Concerning the Cape Lisburne plants, Dr. White's 

 report* contains the following statement relative to their age : 



"These fossil plants are evidently of Carboniferous age. 

 Owing to the marked scarcity of filicate elements the testimony 

 of the collection is less direct as to precise age than might other- 

 wise be the case. However, from the evidence in hand I am 

 forced to conclude that the plant-bearing terrane is Mississipian, 

 and it appears probable that it is referable to the lower, portion 

 of the Mississippian. The flora, especially that of lot 3554, is 

 very closely related to that from Bell Sound and Klass-Billen Bay 

 in Spitzbergen. It seems to be slightly younger than the Ursa 

 flora." 



Above the plant-bearing beds only marine fossils are seen. 

 The limestones which follow the sandstone and shales carry an 

 abundant fauna. Corals are quite abundant in the upper 

 division of the limestone series. Dr. G-irty has furnished the 

 following list of fossils from these beds : 



Lot U C. 



Fenestella sp. 

 Cystodictya? sp. 

 Derby a? sp. 



Productus semireticulatus 

 Beticidaria? sp. 



Lot U D. 



Lithostrolion sp. A. 

 Crinoid stems 

 Fenestella sp. 

 Uemitrypa sp. 

 Stenopora sp. 

 Cystodictya f sp. 

 Streblotrypa f sp. 

 Chonetes sp. 



Productus semireticulatus 

 Productus off. burlingtonensis 

 Productus aff. concentricus 

 Spirifer aff. striatus 

 Peticularia f sp. 

 Griffithides ? sp. 

 Bairdia? sp. 

 * Collier, A. J., Geology and Coal Resources of the Cape Lisburne Eegion, 

 Alaska, Bull. U. S. Geol. Survey No. 278, p. 22, 1906. 



