- Origin and Relationships of the California Flora
- The Miocene Purple Mountain Flora of Western Nevada (University of California Publications in Geological Sciences)
- A Miocene (10-12 Ma) Evergreen Laurel-Oak Forest from Carmel Valley, California
- The Oligocene Haynes Creek Flora of Eastern Idaho (University of California Publications in Geological Sciences)
- Role of Volcanism in Climate and Evolution (Special Papers (Geological Society of America), No. 185.)