Pentz, Butte County ("Pence's Ranch"), and Tuscan Springs, Tehama County, California, United States; Chico ... [details]
Pentz ("Pence's Ranch, twelve miles north of Oroville, Butte County"), California, United States; Chico Formation, ... [details]
"Texas Flat, Placer County", California, United States [details]
Tuscan Springs, Tehama County, California, United States; Chico Formation, Coniacian to Campanian, late Cretaceous [details]
"From a bed of fine clay adjoining the 'Peacock', or lower vein of coal, in the Peacock coal-mine, Mount Diablo ... [details]