Additional
Information: The earliest known vascular plants.
Rhyniophyta Sites:
Rhyniophyta Rhyniophyta: Description and diagram of Rhynia, the first known vascular plant for which a complete fossil has been found. (Rhyniophyta) http://www2.ncsu.edu/unity/lockers/project/dendrology/index/plantae/vascular/vascular.html
The Oldest Land Plants The Oldest Land Plants: Rhynie Chert. (Rhyniophyta) http://www.xs4all.nl/~steurh/eng/old2.html
Rhynia gwynnevaughanii Rhynia gwynnevaughanii: Transverse section of a stem. (Rhyniophyta) http://www.xs4all.nl/~steurh/eng/rhynia.html