Extremely rare museum quality really big young plant fossil fern Spiropteris

Description

My genuine specimens 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:
Extremely rare, museum quality, really big
Y
oung
curled
fiddlehead fern:
Spiropteris sp.
Locality:
All detailed data will be provided with the specimen
Stratigraphy:
Upper Carboniferous, Middle Pennsylvanian / Westphalian B
Age:
ca. 310 Mya,
Matrix dimensions:
ca. 14,0 x 7,0 x 1,5 cm ( white square on last picture is 1,0 x 1,0 cm )This is really huge
Spiropteris sp.
fiddlehead ! It is 7 cm long !
Description:
Extremly Rare, museum quality, really big and detailed
fossil
plant
: Young
,
un
curled
fiddlehead fern called
Spiropteris sp.