Two fossil plants plate - fossil coal age ferns Mariopteris & Spehnopteris !

Description

My genuine specimens will be delivered with a "Certificate of authenticity, age and origin"  and scientific papers allowing plant identification !
I combine the 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:
Two coal age fern species:
Mariopteris sp.
&
Sphenopteris sp.
preserved on one plate !
Locality:
Poland, GZW Upper Silesia Coal Basin, GZW
Stratigraphy:
Upper Carboniferous, Middle Pennsylvanian, Namurian B "Siodlowe" Beds
Age:
ca. 320 Mya,
Matrix dimensions:
ca. 11,0 x 8,0 x 1,5 cm ( white square - scale bar on pictures is 1,0 x 1,0 cm)
Description:
Two coal age fern species:
Mariopteris sp.
&
Sphenopteris sp.
preserved on one plate !