Zeilleria

Photographed by Michael P. Klimetz

Zeilleria frenzli [Stur]

Upper Carboniferous-Westphalian B

[Middle Pennsylvanian]

Upper Silesia

POLAND

Photographed by Michael P. Klimetz

Zeilleria frenzli [Stur]

Upper Carboniferous-Westphalian B

[Middle Pennsylvanian]

Upper Silesia

POLAND

Photographed by Michael P. Klimetz

Zeilleria frenzli [Stur]

Upper Carboniferous-Westphalian B

[Middle Pennsylvanian]

Upper Silesia

POLAND