Ichnofossils

Photographed by Michael P. Klimetz

Trilobite Tracks

[Impressions in Calcareous Shale]

Lower Silurian

Bisher Formation

OHIO

Track

Photographed by Michael P. Klimetz

Reptile Tracks

[Impressions in Sandstone]

Permian

Coconino Sandstone

Yavapai County

ARIZONA

Photographed by Michael P. Klimetz

Photographed by Michael P. Klimetz

Photographed by Michael P. Klimetz

Photographed by Michael P. Klimetz

Reptile Tracks

[Impressions in Sandstone]

Permian

Coconino Sandstone

Yavapai County

ARIZONA