San Joaquin Vly Paleontology San Joaquin Vly Paleontology Claim Listing Description Details Address 19450 Avenue 21 1/2 City Chowchilla State California ZIP Code 93610 Phone 559 665-7107 Listing Category Foundation-Educ Philanthropic Research - Listings Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?