Fossil plant classic 3D preserved Stigmaria ficoides coal age lycopsid tree root

Description

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Specimen:
Classic 3D preserved , detailed fossil plant - lycopod:
Stigmaria ficoides
STERNBERG
Locality:
All detailed and accurate data will be provided with the specimen
Stratigraphy:
Upper Carboniferous, Middle Pennsylvanian Westphalian B "Orzeskie" Beds
Age:
ca. 310 / 315 Mya,
Matrix dimensions:
ca. 10,5 x 8,0 x 5,0 cm ( white square - scale bar on pictures is 1,0 x 1,0 cm)
Description:
Classic , 3D preserved fossil plant, Stigmaria species:
Stigmaria rugulosa
GOTHAN (
The strong wrinkling is characteristic for this species)
Until now well understood are three species:
Stigmaria ficoides
STERNBERG
Stigmaria are a type of branching tree root fossil found in
Carboniferous
rocks. They were the roots of
coal forest lycopsid
trees such as
Sigillaria
and
Lepidodendron
.
Stigmaria
is the generic name given to fossil
root
casts
of various tree species of the Pennsylvanian Period, regardless of the form genera and species. The round nodes on the surface of
stigmaria
are scars where ribbon-like rootlets were once attached and arranged radially about
stigmaria
like the bristles of a bottle brush.
A flattened vascular tube is frequently visible on the end of
stigmaria
, located just off center of the axis of the root and running longitudinally down its length, which provided fluids  and perhaps nutrients to the main tree in life.
Systematic:
Division:
Tracheophyta (Lycoposida)
Class:
Lycopodinae
Order:
Lycophodiales
Family:
Sigillariaceae
Genus:
Stigmaria
Species:
Stigmaria ficoides
STERNBERG