Framed Fossil Fish Knightia eocaena
mm = 1 inch): Fish fossils is 97 mm in length on 115 mm by 80 mm matrix
(visible), framed size 235 mm by 180 mm
Formation, Fossil Lake, Kemmerer, Wyoming
This 50 million year old, Eocene-Era fossil fish comes from
one of the world's famous Laggerstatten, the Green River Formation
in Wyoming. A small portion of the fish fossils from Green
River exhibits such fine preservation. The significant extent
of soft-tissue preservation that makes the site famous is evident
in this specimen.
particular fish is Knightia eocaena, the State Fossil of Wyoming.
In Fossil Lake, these fish reach
their maximum size of 25 cm, but
averages roughly half that. Knightia was a schooling fish which
is sometimes found in mass mortality layers confined to a single
plane, indicative of a single event. Theories as to the reasons
include stratified water turnovers as well as poisoning due to
blooms of blue-green algae. The modern-day Alewife is known to
do so in the Great Lakes of the US. This one is artistically
displayed matted and framed, ready for hanging on the wall
of the den or
office of any fossil collector.