EXPLANATION OF PLATE 10 



Fauna of Martinez Eocene 

 Fig. 1. Crassatellites studleyi, n. sp. 



Fig. 2. Crassatellites unioides (Stanton). 



This species has a great geographical range, being found in the 

 Martinez of the Santa Ana Mountains and in the vicinity of Lower 

 Lake, Lake County, California. 



Fig. 3. Crassatellites stewartvillensis, n. sp. 

 Fig. 4a. Crassatellites claytonensis, n. sp. X 2. 

 Fig. 46. Crassatellites claytonensis, n. sp. X 2. 



Fig. 5. Glycimeris veatchii var. major (Stanton). XI. 

 A common form restricted to the Martinez. 



Fig. 6. Phacoides quadrata, n. sp. X 2. 



Fig. 7. Phacoides diaboli, n. sp. X 1. 



Fig. 8. Phacoides turneri (Stanton). X 1. 



Fig. 9. Dosinia( ?) lawsoni, n. sp. X 2. 



Fig. 10. Venus(?), sp. XI. 



Fig. llo. Phacoides muirensis, n. sp. X 2. 



Fig. 116. Phacoides muirensis, n. sp., umbonal view. X 2. 



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