Geological Notes <>/> the Sierra. Nevada. — Turner. 2J51 
The following fossils were collected here by Dr. Cooper 
Curtice, Mr. W. T. Turner and Mr. T. W. Stanton. Through 
the kindness of Mr. C. D. Walcott these were examined by Mr. 
Charles Schuchert, of the U. S. Geological Survey, who re- 
ports upon them as follows : 
"The collection from Little Grizzly creek, Plumas county, California, 
shows the fossils to be <>!' Upper Carboniferous age. The common forms 
arc of the following species: 
Areheocidaris, plates and spines like those of .1. ornatu* Newberry, 
and .1. trudifer White. 
Chonetes n.sp. A very common, large, subquadrate and very convex 
species. 
Productus longispinus Sowerby. 
Productus semireticulatus t 
Orthis (Schizophoria) pe'eosi Marcou. 
Uhynehonella (Uncinulus) n.sp. ? 
Spirifer n.sp. Related to S. eamernta .Morton and & musakJieylensis 
Davidson. 
Spvrifer (Reticularia) lineatus Martin. 
Spiriferina eristata Schlotheim. 'flic large variety. 
This fauna is closely related to that of the Robinson* beds. The spe- 
cies of the latter locality are known to me only by the list published by 
Mr. Diller." 
These beds are stratigraphically nearly in a line with the 
Robinson beds, which are considered by Mr. Walcott to be of 
Upper Carboniferous age, and which are also in part com- 
posed of volcanic materials. 
Both of these localities lie at the east base of the Sierra 
Nevada, and the formation represented may not enter into 
the composition of the main mass of the range. 
Mineral Kino Beds. 
The attention of the writer was first called to this locality 
by specimens in the collection of the California State Mining 
Bureau. Later Mr. Becker and the writer paid a visit to the 
locality and a lot of the fossils were collected by the writer 
and sent to Washington. They were all much distorted, and 
Mr. Walcott and Dr. White on examining them could only say 
that they were Triassic. Mr. Stanton Inter examined them 
and identified a plicate form of an Ostrea, and somewhat 
doubtfully Pecten, Lmia, Mytilus and Halobia. 
Cedar Formation. 
This was established by Mr. Diller-f and Includes tin- hori- 
*Bnll. Geol. S<>c. Am., vol. :\. p. :i7f>. 
I Text of i he Lassen peak sheel . 
