You can find out more about long ago times right here in the
South Bay Area.
In the Irvington gravel pits, known as Bell Quarry, located off of Osgood Road from 1944 to 1960, the Boy Paleontologists of Hayward unearthed plant and animal fossils including mammoths, saber cats, horses, camels, and even rodents. A new species named Tetrameryx irvingtonensis, a four-pronged antelope, was the most significant find. Presently Freeway 680, between Washington Boulevard and Durham Road, covers this fossil field.