Colorful fossil plant Asterotheca micromiltoni coal age spore tree fern leaf !

Description

My genuine specimens will be delivered with a "Certificate of authenticity, age and origin"  and scientific papers allowing plant identification !
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Specimen:
Asterotheca ( Pecopteris  ) plumosa
(ARTIS) BRONGNIART1828
Locality:
All detailed and accurate data will be provided with the specimen
Stratigraphy:
Upper Carboniferous - Westphalian B
Age:
c
a. 310 Mya
Matrix dimensions:
ca 12,0 x 9,5 x 2,5 cm ( white sqare on pictures is 1,0 x 1,0 cm)
Description:
The group "true ferns" includes foliage that have been shown to produce spores on the underside of their leaves. Some plants in this group were ground dwelling and others may have been epiphytes. Though most of the plants are treated as tree ferns and have been found to be related to an extand order of ferns called the Marattiales. Today the Marattiales consist of two genera Angiopteris and Marattia.
Pecopteris
is derived from the Greek
pekin
, (to comb), and
pteris
, (a fern). This is because the leaflets of
Pecopteris
fronds are arranged like the teeth on a comb.
Systematic:
Division:
Trachaeophyta (Pteropsida)
Class:
Marattiopsida
Order:
Marattiales
Family:
Marattioids
Genus:
Asterotheca
Species:
Asterotheca ( Pecopteris) micromiltoni
( BERTRAND ) CORSIN