3-iS Diller — Klamath Mountain Section, California. 



"Summary of the foregoing lists of fossils" 



"The section of locality 6,242 given me by Mr. Diller, the 

 thickness of which he estimates to be about 900 feet, has one 

 general fauna indicative of the Middle Devonian. The general 

 age has been known for some years, but the collections of 1902 

 have given us a definite section and also species that are known 

 to occur in other American localities. This is especially true of 

 the fossils of the Lower shale zone, which repeats the fauna of the 

 Eureka and White Pine Districts of Nevada and the Middle 

 Devonian of Iowa. The species that are common to at least two 

 of these regions are Schizaphoria striatula, Stropheodonta canace, 

 Gypidula lotis, Pugnax altics, Atrypa missouriensis and Cry Una 

 missouriensis ? " 



" Taking these species in connection with the corals of the 

 limestones, as Heliolites porosa, Endophyllum or Spongophyllum 

 and Phillip sastraea, one sees plainly that the California Middle 

 Devonian belongs to the ' Euro-Asiatic province '. This province 

 extends east in North America as far as Central Missouri, Eastern 

 Iowa, Milwaukee, Wisconsin, and Petosky, Michigan. East of 

 these places occur the Middle Devonian faunas of the " North 

 American type." 



Continuing northward from the Kennett region the Devonian 

 limestones and shales are well exposed, rich in fossils on Hazel 

 Creek and Soda Creek, as well as near Gazelle, 20 miles north- 

 west of Mount Shasta. Notes concerning all of these locali- 

 ties have been published, but there remains to call attention to 

 a limestone three miles northeast of Kerby, in Oregon, which 

 has furnished a few indistinct fossils. " A species of Chcetetes 

 and a Cyathophyllum-like coral," common to the Devonian 

 limestone near South Fork have been recognized by Mr. 

 Schu chert. 



Carboniferous. 



Southwestern Carboniferous belt. — This belt of limestone 

 lenses and associated shales and sandstones lies some distance 

 southwest of the schists of Bully Choop and Salmon Moun- 

 tains and is bounded west by the Devonian belt of the South 

 Fork of Trinity River. Small masses of limestones in this 

 belt were first seen on the stage roads below Harrison gulch in 

 Shasta County and found to extend northwest across the 

 divide to the Hall City mines and beyond by the base of Chan- 

 chelulla to Hay Fork and Bridge Creek, where one of the lenses 

 forms a remarkable natural bridge. From Hay Fork Valley 

 the limestones extend up Baker and Big Creeks, and were not 

 seen again until New River was reached near Patterson's 

 Ranch.* 



* U. S. Geol. Survey Bull. 196, p. 64. 



