164 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Seh. 



Carpinus, Corylus, Fagiis, Uhnus, Planera, Nyssa, Viburnum, 

 Diospyros, Vaccinium, Vitis, Cornus, Magnolia, Acer, Juglans. 



This flora indicates warm temperate conditions, about the 

 same as the South Atlantic states. 



lone Flora (middle California, in the inner Coast Ranges, 

 and in the Auriferous Gravels, Sierra Nevada). Acer cequid- 

 entatum Lx., Aralia angustiloba Lx., Aralia zvhitneyi Lx., 

 Castanea castanecB folia Ung., Castaniopsis chrysophylloides 

 Lx., Cornus hyperborea Hr., Ficns tilicefolia Al. Br., Juglans 

 californica Lx., Juglans laurinea Lx., Geonomites schimperi 

 Lx., Liquid ambar calif ornicum Lx., Magnolia californica Lx., 

 Magnolia lanceolata Lx., Persea pseudocarolinensis Lx., Plat- 

 anus appendiculata Lx., Quercus nevadensis Lx., Quercus dis- 

 tincta Lx., Rhus myriccefolia Lx., Sabalites californica Lx., 

 Ulmus af finis Lx., Ulmus californica Lx., Zizyphinus piper- 

 aides Lx. 



This flora is certainly tropical, or subtropical, and extends 

 with little change up to Puget Sound, where palms are more 

 abundant than they are in the lone flora. 



The flora of the Auriferous Gravels (lone) was listed by 

 F. H. Knowlton** as Miocene. This does not agree with the 

 results of various workers on the West Coast, and R. E, 

 Dickerson*^ has proved conclusively that the lone portion of 

 the Auriferous Gravels is Eocene. This flora has been found 

 interbedded with marine Eocene forms in the Mt. Diablo region 

 in the Coast Ranges, in the foothills of the Sierra Nevada, of 

 California, and in the Arago Eocene of Oregon. 



Martinez fauna. The Martinez is the oldest Eocene known 

 on the Pacific Coast; its fauna has been described in mono- 

 graphic form by R. E. Dickerson.** vSpecies are : Terebratalia 

 tejonensis Stanton, Flabellum remondianum Gabb, Trochocya- 

 thus zitteli Merriam, Cucullcea mathewsoni Gabb, Crassatellites 

 unioides Stanton, Glycimeris veaichi Gabb, var. major Stanton, 

 Leda alcrformis Gabb, I^eda packardi Dickerson, Lima mnltira^ 

 diata Gabb, Lima hascltinei Dickerson, Lima perrini Waring, 

 Pecten interradiatus Gabb, Phacoides turneri Stanton, Phola- 

 domya nasuta Gabb, Tellina undulifera Gabb, Venericardia 

 planicosta var. venturensis Waring, Architectonica tabulata 



"Prof. Paper No. 73, U. S. Geol. Survey, (1911), pp. 57-64. " 



«Univ. of Calif. Pub. Bull. Dept. Geol., vol. 9, No. 17, (1916), pp. 409 et seQ. 

 *" Fauna of the Martinez Eocene of California. Univ. of Calif. Pub. Bull. Dept. 

 Geol., vol. 8, No. 6, (1914), pp. 61-180. 



