by Chester A. Arnold
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An Introduction To Paleobotany
The fern genus Acrostichum in the Eocene...
A fossil Dennstaedtioid fern from the Eo...
Fossil flora of the Michigan coal basin
Fossil plants and continental drift
Lepidodendron johnsonii, sp. nov., from ...
On Callixylon newberryi (Dawson) Elkins ...