Negative sea Scorpion Eurypterid or spider fossil in Mazon Creek like nodule !!!

Description

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Specimen:
Extremely rare preserved
as negative ( only one negative part was found ) fossil arthropod - probably
Adelophthalmus
Eurypterid or spider in Mazon Creek like nodule half from Europe
Locality:
All detailed and accurate data will be provided with the specimen
Stratigraphy:
Upper Carboniferous,
Bashkirian
-
Westfal A,
Age:
ca. 314 Mya
Nodule size :
ca. 2,5 x 2,2 x 0,5 cm ( white square on pictures is 1,0 x 1,0 cm)
Description:
Extremely Rare , a single , unique find !!! preserved as negative ( only one open side was found ) unknown arthropod - possibly Sea Scorpion Eurypterid
Adelophthalmus
?
or arachnid spider abdomen in
Mazon Creek like nodule half from Europe !