UNIVERSITY OF CALIFORNIA PUBLICATIONS 



BULLETIN OF THE DEPARTMENT OF 



GEOLOGY 



Vol. 8, No. 5, pp. 39-60, pis. 1-5 Issued April 16, 1914 



TERTIARY ECHINOIDS OF THE CARRIZO 

 CREEK REGION IN THE COLORADO 

 DESERT 



BY 



WILLIAM S. W. KEW 



CONTENTS 



PAGE 



Introduction 39 



Occurrence 40 



Carrizo Creek Locality 42 



Coyote Mountain Locality 44 



Yuha Buttes Locality 45 



Faunal Eelations 45 



Description of Species 47 



Eneope tenuis, n. sp 47 



Clypeaster deserti, n. sp 48 



Clypeaster carrizoensis, n. sp 49 



Clypeaster bowersi Weaver 50 



Hipponoe californica, n. sp 50 



Cidaris, sp 51 



Echinoderm Localities 51 



Introduction 



In connection with a study of the Tertiary echinoids of California, 

 the writer has visited the western border of the Colorado Desert in the 

 region of Carrizo Creek and Coyote Mountain twice within the past 

 two years, for the purpose of obtaining a collection of the fauna 

 associated with Clypeaster bowersi Weaver. The first excursion was 



MAY 4 i 9l4 



