Very rare fertile fossil fern Alloiopteris Corynopteris similis nice sporangia !

Description

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.
My specimens are
genuine and
will be delivered with a "Certificate of authenticity, age and origin" and scientific papers allowing plant identification !
Specimen:
Beautiful and rare fossil fern
Alloiopteris Corynopteris similis
STERNBERG fructification with nice, detailed sporangia!
Locality:
Poland, GZW Upper Silesia Coal Basin
Stratigraphy:
Upper carboniferous - Westphalian B - "Orzeskie" Beds
Age:
c
a 310 Mya
Matrix dimensions:     ca 15,0 x 5,5 x 1,0 cm ( white square is 1,0 x 1,0 cm )
Description:
Beautiful and rare fossil fern
Alloiopteris Corynopteris similis
STERNBERG fructification with nice, detailed sporangia !
Fructification (Latin:
fructificatio
) are the generative parts of the plant (flower and fruit) (as opposed to its vegetative parts: trunk, roots and leaves). Sometimes it is applied more broadly to the generative parts of gymnosperms, ferns, horsetails, and lycophytes, though they produce neither fruit nor flower.