Sigillariostrobus

Photographed by Michael P. Klimetz

[Sigillaria Cone in Bituminous Claystone]

Carboniferous

Knurow

Gliwice

POLAND

Photographed by Michael P. Klimetz

[Sigillaria Cone in Bituminous Claystone]

Carboniferous

Knurow

Gliwice

POLAND

Photographed by Michael P. Klimetz

[Sigillaria Cone in Bituminous Claystone]

Carboniferous

Knurow

Gliwice

POLAND

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