The Oligocene Bridge Creek Flora of the John Day Formation, Oregon (University of California Publications in Geological Sciences)
ISBN:9780520098169This comprehensive systematic revision of the Bridge Creek flora is based on large collections of m...
The Oligocene Bridge Creek Flora of the John Day Formation Oregon University of California Publications in Geological Sciences
Eocene and Oligocene Paleosols of Central Oregon
ISBN:9780813723440...
Eocene and Oligocene Paleosols of Central Oregon