Very Rare coal age extinct fossil fern species Sphenopteris pecopteroides

Description

My specimens are gunine and will be delivered with a "Certificate of authenticity, age and origin"  and scientific papers allowing 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:
Very Rare extinct fossil fern:
Sphenopteris pecopteroides
KIDSTON
Locality:
All detailed and accurate data will be provided with the specimen
Stratigraphy:
Upper Carboniferous - Late
Pennsylvanian
- Stephanian A
Age:
ca. 302 - 300 Mya
Matrix dimensions:
ca. 11 x 8,0 x 1,0 cm ( white square on pictures is 1,0 x 1,0 cm)
Description:
Rare, extinct sphenopterid fossil fern:
Sphenopteris
pecopteroides
KIDSTON
Fern name
Sphenopteris
pecopteroides
KIDSTON
means:
Sphenopteris fern looking like Pecopteris fern described by Kidston.
Systematic:
Division:                Tracheophyta (Sphenopsida)
Kingdom:               Chlorobiota  Plantae
Family:                  Lyginopteridaceae
Genus:                   Sphenopteris
Species:
Sphenopteris pecopteroides
KIDSTON