TY - RPRT TI - Strontium isotope chronostratigraphic age of a sirenian fossil site on Santa Rosa Island, Channel Islands National Park, California AU - James B. Paces AU - Scott A. Minor AU - Kevin M. Schmidt AU - Jonathan Hoffman PY - 2023 DO - 10.3133/sir20235026 UR - https://pubs.usgs.gov/publication/sir20235026 ID - sir20235026 ER -