356 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



Middle Triassic fossils are more abundant and better pre- 

 served than anywhere else in the Humboldt region. The 

 beds lie in a saddle between two small peaks, at about five 

 thousand feet above sea level, about one mile west of the 

 mouth of Troy Canon. The shaly limestones are literally 

 full of fossils, and the rock is so soft that they can easily be 

 separated from the matrix. The geologic horizon seems to 

 be the same as that in Cottonwood and Buena Vista canons, 

 for most of the species are the same as those found at these 

 localities, but there is sufficient difference in the faunas to 

 suggest a slight difference in age. 

 The writer found at this locality : 



Daonella dubia Gabb Arcestes gabbi Meek 



Daonella conf. lommeli Wissmann Eutornoceras laubei Meek 



Orthoceras blakei Gabb Eutornoceras dunni Smith 



Anolcites meeki Mojsisovics Sageceras gabbi Mojsisovics 



Anolcites whitneyi Gabb Celtites halli Mojsisovics 

 Ceratites conf. trinodosus Mojsisovics Celtites sp. nov. 



Ceratites conf. planus Arthaber Dinarites sp. indet. 



Ceratites vogdesi Smith Danubites sp. indet. 



Ceratites nevadanus Mojsisovics Acrochordiceras aff. hyatti Meek 



C(?ra/z7^5 (several new species) Ptychites? perplanus Meek 



Htmgarites sp..nov. Gymnotoceras blakei Gabb 



Longobardites sp. nov. Gymnotoceras tneeki Mojsisovics 



Beyrichites rotelliformis Meek Gymnotoceras (several new species) 



Beyrichites sp. nov. Atractites sp. indet. (very abundant) 



Saurian bones, probably of Cymbospondylus Leidy. 



Of this fauna Eutornoceras Imihei and Sageceras gabbi 

 have been referred to by Mojsisovics ^ as probably occur- 

 ring in the higher part of the Trias, but the writer found 

 them in the same bed with the others. The list of fossils 

 given above can only mean that the beds belong to the 

 Middle Trias, and possibly not merely to the uppermost 

 zone of that formation, but in part also to the zone of 

 Ceratites trinodosus. 



The Middle Trias of California. The upper limestone 

 of the Union Wash, west side of the Inyo Range, and 

 about three miles up above the Reward Mill has been 



iCephai. Ob. Trias d. Himalaya, p. 696. 



