Ostrya oregoniana fruit. Figured in Meyer, H.W. and S.R. Manchester. 1997. The Oligocene Bridge Creek flora of the John Day Formation, Oregon. University of California Publications in Geological Science. 141:1-195; 75 plates.
Paleobotany + Palynology
Ostrya oregoniana fruit. Figured in Meyer, H.W. and S.R. Manchester. 1997. The Oligocene Bridge Creek flora of the John Day Formation, Oregon. University of California Publications in Geological Science. 141:1-195; 75 plates.