Photographed by Michael P. Klimetz
[Bark Impressions in Shale]
Carboniferous - Westphalian
Czierwonka
POLAND
Photographed by Michael P. Klimetz
[Bark Impressions in Shale]
Carboniferous - Westphalian
Pas de Calais
FRANCE
Photographed by Michael P. Klimetz
Carboniferous - Westphalian
Duckmantian Stage Roof Shales
Crock Hay Open Cast
Wigan
Lancashire
UNITED KINGDOM
Photographed by Michael P. Klimetz
Carboniferous - Westphalian
Duckmantian Stage Roof Shales
Crock Hay Open Cast
Wigan
Lancashire
UNITED KINGDOM
Photographed by Michael P. Klimetz
[Bark Impressions in Shale]
Pennsylvanian
KENTUCKY
Photographed by Michael P. Klimetz
[Carbonized Bark and Bark Impressions in Shale]
Pennsylvanian
KENTUCKY
