Pennsylvanian
Wild Cow Member, Madera Formation
Los Lunes, New Mexico, USA
45mm x 55mm slab.

Leaf. Fern. Carboniferous.

Here’s a truly ancient fern specimen from a locality rarely seen on the market.

The Pennsylvanian Period (Late Carboniferous) was a time of tropical climates across much of the world though ice was forming at the poles near its end.  Vast lowland swamps dominated much of what would become North America and Europe as the continents were drifting toward each other – destined to assemble into the supercontinent, Pangaea.

Unusual piece representing the Late Carboniferous (Pennsylvanian) of western North America.