TY - RPRT TI - Comments on opal phytoliths and stratigraphy of Neogene silicoflagellates and coccoliths at Deep Sea Drilling Project Site 397 off northwest Africa. AU - David Bukry PY - 1979 DO - 10.2973/dsdp.proc.49.app6.1979 UR - https://pubs.usgs.gov/publication/70208818 ID - 70208818 ER -