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Herring Fossil Knightia + Poplar Leaf - 11 x 8.25 in.

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Herring Fossil Knightia + Poplar Leaf - 11 x 8.25 in.

Availability: Out of stock

Knightia eocaena (Jordan, 1907)

& Populus sp. (Poplar Tree Leaf)

Green River Formation - 50 Million years old

Kemmerer, Wyoming, USA

Knightia : 4 x 1.25 in.

Populus Leaf : 4 x 2 in.

Plate : 11 x 8.25 in.

(1 inch = 2.54 cm)

A snapshot of time, as leaves turn or possible high winds thrash them into the waters of the Fossil Lake, this leaf from a Poplar tree fell into the near shore waters and settled on the lake floor beside this ancient Herring.



The Green River Formation in Wyoming is one of the most famous and important Eocene (50-45 million years old) sites in the world. It provides a glimpse of the daily life surrounding the great Fossil Lake. From the prolific fossil fish deposits, the Green River Formation is also famous for it's insect, mammal, and even plant fossils! The formation exposes itself from southern Wyoming and into Utah and Colorado and shows us how life was more temperate at that time, often 60-70 degrees Fahrenheit.