Pennsylvanian Tree Fern Petrified Wood Plant Fossil
is 200 mm by 135 mm
Monongahela Formation, Athens County, Ohio, USA
Sections of tree fern trunks are highly prized for their beauty.
Tree ferns have been around since the Late Carboniferous, and persist
to this day, earning them the term “living fossil”.
The “trunk” is composed of many vascular elements that
supply the plant with water and nourishment, making for a most pleasing
overall effect. This is an essentially complete trunk section which
shows the adventitious roots of the fern in great detail. It has
been polished on one side to show off the interior to best advantage,
while the root bundles show off well on the reverse.. The vascular
strand of a young plant would divide, and adventitious roots would
then surround the stem to provide support, allowing additional stems
to grow alongside. Members of the genus lived in wet environments
as well as ground subject to periodic drying. They flourished into
the Permian, to become extinct in the later Permian when the climate
became too hot and dry in many places for it to exist.
click fossil plant
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