TY - RPRT TI - Calcareous nannofossil biostratigraphy and floral response to environmental changes recorded in the Pliocene Yorktown Formation, southeastern Virginia, USA AU - Masayuki Utsunomiya AU - Harry J. Dowsett PY - 2025 DO - 10.29041/strat.22.3.02 UR - https://pubs.usgs.gov/publication/70271692 ID - 70271692 ER -