This is a diagram showing the rocks of the successive periods of time. They are shown in order from…
"Bear Butte, from the North." -Walcott, 1901
Favosites alcyonaria is a species of fossil corals from the Silurian, Devonian, and Carboniferous strata.
A species of Seed Fern (Sphenopteris obtusiloba) is a fossil fern in the Carboniferous Era.
A species of Seed Fern (Sphenopteris latifolia) is a fossil fern in the Carboniferous period.
A section of the Paleozoic rocks found in the Mississppi basin illustrating the periods and ages.
"Diagrammatic structure section of the Wasatch Range in Ogden Canyon." -Lee, 1915
An illustration of a sea fern fossil from the carboniferous period. The Carboniferous is a geologic…