March 2014 — Marine fossils found in Newhall Creek near Creekview Park, just west of Placerita Canyon, by local historian Lauren Parker and her 6-year-old son.
According to Lindsey Grove, collections manager for the Natural History Museum of Los Angeles County, the
specimens come from the Pliocene Pico Formation of 2.6 to 3.0 million years ago.
Grove's descriptions of individual specimens appear in the photo captions.