Paleodietary analysis of a San Francisco Bay Area shellmound: stable carbon and nitrogen isotope analysis of late Holocene humans from the Ellis Landing site (CA-CCO-295)

► In the Bay Area, faunal remains suggest an increase in diet breadth through time. ► We use stable carbon and nitrogen isotope data to reconstruct past human diet. ► Two temporal components at the Ellis Landing site (cal AD 55-1550) were examined. ► Isotope values reflect both marine and terrestrial food consumption. ► No temporal trend or meaningful sex differences were found in isotope values.