Author:
Leopold,E.B.
Year:
1969
Title:
Late Cenozoic palynology. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors)
Reference:
Leopold,E.B. (1969) Late Cenozoic palynology. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) Aspects of Palynology.(Tschudy,R.H.& Scott,R.A.,editors). John Wiley & Sons, New York P. 377- 438
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Xanthium Xanthium Colorado Middle Miocene
Zelkova Zelkova USA(Rocky Mountains) Late Miocene Early Pliocene
Zelkova Zelkova Germany Miocene
Zelkova Zelkova Alaska Late Oligocene Early Pleistocene
Zelkova Zelkova Colorado Middle Miocene
Zelkova Zelkova USA(Pacific Northwest) Oligocene Late Neogene
Zelkova Zelkova Maryland Miocene