UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



GEOLOGY 



Vol. 1 2, No. 5, pp. 277-424, plates 43-50, 1 65 text figures. December 28, 1 92 1 



EXTINCT VERTEBRATE FAUNAS OF THE 

 BADLANDS OF BAUTISTA CREEK 

 AND SAN TIMOTEO CANON, 

 SOUTHERN CALIFORNIA 



BY 



CHILDS FRICK 



CONTENTS 



PAGE 



Introduction 279 



Bautista Creek area (Pleistocene) 283 



San Timoteo Canon area (late Upper Pliocene) 283 



Eden area (upper division of Lower Pliocene) 283 



Historical 284 



History of the regions 285 



Correlation 287 



Pleistocene formations of the Bautista Creek Badlands 289 



Occurrence 291 



Bautista fossil localities 293 



Description of Bautista Creek Pleistocene fauna 293 



Lepus, sp 293 



Megalonyx?, sp 294 



Camelid?, sp 295 



Odocoileus?, two or more species 296 



Capromeryx?, sp 300 



Antilocapra?, one or more species 300 



Equus bautistensis, n. sp 302 



Tapirus merriami, n. sp 311 



Tertiary deposits of the San Timoteo Badlands 314 



Upper San Timoteo deposition 317 



Occurrence 319 



Upper San Timoteo fossil localities 319 



Description of San Timoteo Pliocene fauna 320 



Megalonyx, sp 320 



Pliauchenia?, sp 321 



Camelid?, small sp 322 



Cervid?, medium sized sp 322 



Pliohippus francescana, n. sp 322 



Pliohippus francescana minor, n. subsp 330 



Testudinata 334 



