Pre dinosaur fossil plant extinct fern Sphenopteris leaves and trunk in siderite

Description

My specimens are genuine and will be delivered with a "Certificate of authenticity, age and origin"  and scientific papers allowing to plant identification !!!
I combine shipping costs.
Each item is different, so please wait with payment after purchase -
I will send You a combine invoice.
Usually, it will be cost of shipping the heaviest item.
Specimen:
Classic c
oal age liana like extinct seed fern
Sphenopteris baumleri
ANDR
preserved in siterite matrix
Locality:
All detailed and accurate data will be provided with the specimen
Stratigraphy:
Upper Carboniferous, Middle Pennsylvanian - Westphalian B
Age:
ca. 310 Mya,
Matrix dimensions:
ca. 11,5 x 10,0 x 1,5 cm ( white square on pictures is 1,0 x 1,0 cm )
Description:
Very beautiful specimen of Carboniferous fossil fern:
Sphenopteris baumleri
ANDR.
seed fern fossil frond with it's trunk presered in siderite matrix !
Systematic:
Division:
Tracheophyta (Sphenopsida)
Kingdom:               Chlorobiota
Plantae
Family:
Spheno
pteridaceae
Genus:
Spheno
pteris (Zeiller 1878)
Species:
Sphenopteris baumleri
ANDR.