Fossil Fish — Wyoming


  • Size: about 4-7/8″ x 4-3/8″ x 1/2″
  • Weight: 13.5 oz.
  • Epoch: Paleocene
  • Origin: Green River Formation, Wyoming
  • Treatments: None

1 in stock

Fossil Fish — Wyoming

SKU 20240424 Category Tags , , ,


A natural and genuine Fossil Fish from Green River Formation, Wyoming. This fossil is estimated to be 58 Million Years Old (MYO). It is either a Knightias sp. or Dyplomystus sp.. A perfect addition to any collection!

This piece measures about 4-7/8″ x 4-3/8″ x 1/2″, and weighs 13.5 ounces. The fish itself measures about 4-1/2″ in length.

Item pictured is the item that will be received and will come with an information label. The information label that comes with it reads:

Seasonally, around 58 million years ago, in the Green River Region of Wyoming, torrential rains would occur in the mountains. Flowing quickly downhill, wide shallow lakes formed in the valleys there, then evaporated during the dry seasons. About once every 20,000 years, the lakes would completely dry up, killing the millions of fish and other animals that lived there. After this periodic disaster, later floods and dry periods would form layers of shale on the lakebeds, preserving the fish and fossilizing them whole.

Stands are sold separately.

We have more Fossils in stock — Don’t hesitate to email us at or phone us at 856-795-5077 if you’re after something in particular.

Additional information

Weight16 oz
Dimensions5.875 × 5.375 × 1.5 in


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Just need a bit more info...

Let us know a bit more about you 😊

Fill in the form below to ensure you receive our birthday and anniversary coupons.