ABSTRACTS OF PAPERS 163 



FAUNA OF THE BAVTISTA CREEK BADLANDS 

 BY CHILDS FEICK 



(AdsUmct) 



During the fall of 1916 tbe posterior portion of a lower jaw of a fossil horse 

 from the Bautista Creek badlands, near Hemet, California, came into the 

 hands of Dr. J. C. Merriam through the kindness of Mr. J. C. Blackburn. Sev- 

 eral weeks of systematic collecting at this locality has resulted in the gather- 

 ing of other well preserved horse remains, some cervid material, including 

 parts of the dentition, skull, and skeleton, as well as fragmentary evidence of 

 an antelope smaller than Caproineryx minor, and of a small ground sloth. 



The dentition of the horse is of primitive character and apparently indi- 

 cates a new form. The other species likewise appear to be new, and all prob- 

 ably represent a new or imperfectly known stage in the faunal sequence from 

 the late Pliocene to the early Pleistocene. 



This fauna is particularly interesting in its geographic position between the 

 marine beds of the Pacific and those of the Gulf. 



OCCURRENCE OF THE 8IPH0NALIA 8UTTERENSIS ZONE, THE UPPERMOST 

 TEJON HORIZON IN THE OUTER COAST RANGES OF CALIFORNIA 



BY EOY E. DICKEBSON 



(Al)8tract) 



The uppermost horizon of the Tejon Eocene of California, the Siphonalia 

 sutterensis zone, was described from the Eocene of Marysville Buttes and 

 later recognized as occurring at Oroville, beneath the basalt of Oroville, South 

 Table Mountain, at lone, on the western flanks of the Sierra Nevada, and at 

 Merced Falls. In the study of the Mount Diablo region, the Coalinga District, 

 and the southern end of San Joaquin '^^alley, at the type locality of the Tejon 

 group and at San Diego, this upper horizon was not recognized. The zone 

 was placed as an uppermost phase on the basis of stage of evolution and its 

 close connection with the Balanophylia variaMlis zone of the Mount Diablo 

 region. A year ago Mr. Reginald Stoner discovered "a locality in the Santa 

 Susana Mountains, on Aliso Canyon, of Devil Creek, just beneath Miocene 

 strata. The fossils from this locality represent a lower phase of the SiphonaUa 

 sutterensis zone and the fauna is essentially the same as the SiphonaUa sut- 

 terensis zone of the Roseburg quadrangle, on Little River, near the confluence 

 with the Umpqua. In the Simi Hills, a few miles away from the locality dis- 

 covered by Mr. Stoner, the Rimella simplex zone of the Middle Tejon stage 

 occurs. The general absence of this zone throughout most of the Coast Range 

 region is probably due to extensive erosion during the interval between Upper 

 Eocene and Oligocene time. 



At the conclusion of the reading of papers the meeting adjourned and 

 the members of the Paleontological Society attended a dinner of the Le 

 Conte Club, at the Stanford Union. 



