7 

 horizon which does not differ greatly from that of the latter. 



Arnold's middle Fernando collection comes from Ellsmere Canyon, 

 the same locality as the writer's collection. He collected thirty 

 three species, of which thirty were identified, and of these 

 seventeen are found in the Ellsmere Canyon faunal list of the writer. 



His collection localities probably included one somewhat higher 



&JT* ewju>i> to EUtfttertr Cam ^ . betuM* 

 horizon than the others, where he found Pecten caurinus and Pecten 



parmleei. He regards the fauna as equivalent in age to the "typical 

 fossiliferous portion of the Purissima and the lower part of the 

 San Diego formation, 1 ? 



Prom the upper Fernando he gives lists from three localities. 

 The first locality is north-west of Santa Paula, and is of a lower 

 horizon than the other two; it has thirteen species which are found 

 also at Ellsmere Canyon. The third locality is at Barlow's Ranch, 

 and is from a Pleistocene horizon. There are only five species from 

 the latter locality which are found also at Ellsraere Canyon. 



Arnold's work in the Santa Maria district led him to believe 



^^^^^^^^^''*'^**-<***^9^-<**^***-<*V*M*W<'***<l*****'*-**^'-*-^-**-****B*'-*^*** 



^Arnold, Ralph, U.S.O.S.Bull. 322 p. ?8 



- - - . - . . . . - . . . . !.-._..-. -_~...-...... ..-^ .-.-...-.-.-.-. ~. -.-...-.-.-.-.-.-.-.-..a..-.. 



that "at least five, and probably six distinct horizons are recog- 

 nizable in the Fernando by means of characteristic fossil faunas." 

 His faunal list gives all the horizons together, although they 

 extend from the miocene to the Pleistocene. There are seventy 

 species, of which thirteen are found in Ellsraere Canyon. Most of 

 the species which he gives are from the upper or Pleistocene horizon. 



From the upper Fernando Pliocene, or lowest Pleistocene of 

 Bath-house Beach, Santa Barbara, Arnold gives sixty five species, 



