66 University of California Publications in Geology [Vou.7 
MarertaL AVAILABLE 
The material upon which studies of the west coast fossil 
birds have been based has been collected from nine different 
horizons, summarized as follows: 
OLIGOCENE 
Vancouver, B.C. One species (a single specimen). 
MIOCENE 
Virgin Valley Beds, Virgin Valley, Nevada. One species. 
Los Angeles, California. One species (a single specimen). 
PLEISTOCENE 
Potter Creck Cave, California. Sixteen species. 
Samwel Cave, California. Nineteen species. 
Hawver Cave, California. Twelve species. 
Rodeo Pleistocene, California. One species (a single specimen). 
Rancho La Brea, California. Forty-nine species. 
Fossil Lake, Oregon. Fifty-three species. 
The avian collections assembled at the University of Cali- 
fornia represent seven of these localities. One of the seven is 
identical with that studied by Cope and Shufeldt, namely, the 
Fossil Lake region of Oregon. The remaining six collections, so 
far as known to the writer, have not been studied previous to 
the assumption of the task here in part recorded. Three or 
four hundred specimens represent the bird remains from the 
caves, and three or four thousand have been taken from the 
asphalt at Rancho La Brea. 
So far as can be learned, the Oligocene horizon yielding 
Cyphornis to Cope, and the Miocene, from which Lucas described 
Mancalla, have yielded no other avian fossils. 
OLIGOCENE FAUNA 
Cyphornis magnus Cope is the only species known to the 
coast from strata of possibly so great age. The form was de- 
scribed by Cope® from a single specimen, the proximal end of 
a tarsometatarsus, the property of the Geological Survey of 
Canada. The osteological characters displayed by the speci- 
men are such as to have led Cope to assign the species 
with some reserve to the family Pelecanidae. Interest 
centers to some extent in a combination of the two characters, 
© Cope, E. D., Journ. Acad. Nat. Sci., Phila., Ser. 2, No. 9, p. 449, 1894. 
