Title: Coccolith-bearing late middle Eocene kerogen shale, Tillamook Highlands, Northwest Oregon Coast Range
First published: 1993
Subjects: Coccoliths, Fossil, Fossil Coccoliths, Geology, Stratigraphic, Marine sediments, Oil-shales, Stratigraphic Geology, Stratigraphic correlation, Submarine geology
Places: Oregon
Time periods: Eocene