24.5" Diplomystus and Priscacara Fossil Fish Plate - Wyoming

Diplomystus and Priscacara Fossil Fish Plate - Wyoming #172947

This is a excellent, natural assocation of a large, 20.2" long Diplomystus dentatus next to a 4.9" Priscacara serrata. These fossil fish come from the 18 inch layer of the Green River Formation at the Lindgren Quarry near Kemmerer, WY. At just over 20 inches long, this is one of the largest Diplomystus fish that we've had available!

Both fish are nicely presented on a 24.5 x 14" slab of shale that has been backed with oak wood. It comes with a display stand but upon request we can add wall mounting hardware at no additional charge.

There is a natural seam through this rock, however there is no indication of any repair.

Specimens like this come from the coveted 18 inch layer of the Green River Formation, which produces darker and more detailed fish than the majority on the market. The rock from this layer is much harder and more durable than other layers in the formation, likely due to its initial deposition conditions in deep water. Because of these conditions, fish found in the 18-inch layer can be extracted whole and in excellent condition. This layer is typically collected at night using low-angle light to see the bump in the rock that the fish's backbone creates. They then cut these fish out and take them to a lab where the fish, which may be up to an inch under the surface of the rock, are meticulously extracted under microscope with hand tools.

A view of the 18 inch layer of the Green River Formation at the Lindgren quarry near Kemmerer, Wyoming.