VIRTUAL GALLERY

Early Devonian Euphyllophytes -- Psilophyton and Pertica
1:1		Psilophyton ornata compressed fertile axes from the Devonian (Emsian) of Quebec, Canada.
1:2		Pertica compressed fertile axes from the Devonian (Emsian) of Quebec, Canada.
Progymnosperms
1:3		Tetraxylopteris schmidtii compressed axes from the Devonian, New York.
1:4		Archaeopteris gaspensis from the Devonian of Canada.
1:5		Callixylon permineralized wood; radial section.
1:6		Callixylon permineralized wood; tangential section.
1:7		Callixylon permineralized trunk.
Early Seed Plants -- Lyginopteris
1:8		Lyginopteris permineralized stem in transverse section.
1:9		Sphenopteris foliage from the Carboniferous of Holland.
1:10		Lagenostoma permieralized ovule from the Carboniferous of Holland.
1:11		Gnetopsis compressed seeds from the Carboniferous of Virginia.