1914] Dickerson: Fauna of the Martinez Eocene of Calif ornia 91 



STANTON'S DISCUSSION OF THE FAUNA 

 Stanton 23 visited the Lower Lake locality in 1895. He described 

 it as follows : 



Another important locality is near the village of Lower Lake, in Lake 

 County about 75 miles north of San Francisco, where Gabb reported the 

 discovery of intermediate beds which showed a commingling of the Chico and 



Tejon faunas in a single thin stratum, 

 southeast of Lower Lake is as follows: 



Avicula pellucida Gabb 

 Lima multiradiata Gabb 

 Axinaea veatchi Gabb 

 Cucullaea mathewsonii Gabb 

 Crassatella grandis Gabb 

 Tapes conradiana Gabb 

 Corbula alaeformis Gabb 

 Turritella saffordi Gabb 

 Amauropsis alveata (Conrad) 



Gabb 's list of fossils from one mile 



Gyrodes expansa Gabb 

 Lunatia shumardiana Gabb 

 Galerus excentricus Gabb 

 Spirocrypta pileum Gabb 

 Brachysphingus liratus Gabb 

 Perissolax brevirostris Gabb 

 Fusus calif ornicus Gabb 

 Fasciolaria laeviuscula Gabb 



Considerable collections were made 

 locality on Herndon Creek, and also fr< 

 old brickyard one-fourth mile nearer t> 

 following species were obtained: 



Flabellum remondianum Gabb? 



fragment 

 Terebratulina tejonensis Stanton 

 Plicatula ostreaformis Stanton 

 Lima multiradiata Gabb 

 Perna, sp. 



Modiola ornata Gabb 

 Cucullaea mathewsonii Gabb 

 Pectunculus veatchi, var. major 



Stanton 

 Leda gabbi Conrad 

 Leda alaeformis Gabb = Corbula 



alaeformis 

 Crassatella unioides Stanton 

 Venericardia planicosta Lamarck 

 Lucina turneri Stanton 

 Meretrix, sp. 

 Tellina hornii Gabb? 

 Tellina aequalis Gabb 

 Tellina hoffmaniana Gabb 



y me [Stanton] from the original 

 l material taken from a well at an 

 ra, but on the same horizon. The 



Solen parallelus Gabb 

 Dentalium cooperi Gabb 

 Patella, sp. 



Turritella pachecoensis Stanton = 



T. saffordi Gabb 

 Turritella martinezensis Gabb 

 Turritella infragranulata Gabb 

 Lunatia hornii Gabb 

 Ampullina striata Gabb 

 Galerus excentricus Gabb 

 Cerithiopsis alternata Gabb 

 Brachysphingus liratus Gabb 

 Urosyca caudata Gabb 

 Heteroterma gabbi Stanton 

 Heteroterma striata Stanton 

 Siphonalia( ?) lineata Stanton 

 Cypraea bayerquei Gabb 

 Actaeon, sp. 

 Cylichna costata Gabb? 



While this list contains several species that have not been found else- 

 where, it also contains a large proportion of the most characteristic forms of 

 the lower Tejon at Benicia (Army Point) and near Pacheco, so that there 



23 Stanton, T. W., The Faunal Belations of the Eocene and Upper Cretaceous 

 on the Pacific Coast, 17th Ann. Rept. U. S. Geol. Surv., p. 1024, 1895-6. 



