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5.1" Fossil Fish (Knightia Alta) With Pos/Neg - Wyoming
This 5.1" long Knightia alta comes from the Eocene aged Green River Formation of Wyoming. It is nicely detailed and prepared with bone structure, fins, and the overlapping scale structure visible. This specimen split out really nicely and comes with both the positive and negative impression.
It comes with an acrylic display stand.
It comes with an acrylic display stand.
About Fossil Lake
50 million years ago, in the Eocene epoch, these fish thrived in Fossil Lake, which was fed by the Uinta and Rocky Mountain highlands. The anoxic conditions at the bottom of Fossil Lake slowed bacterial decomposition, prevented scavengers from disturbing corpses, and, most interestingly, suffocated creatures that ventured into the oxygen-starved aquatic layer. The result is a miraculous exhibition of Eocene biota: a subtropical aquatic community within sycamore forests, teeming with creatures such as freshwater stingrays, dog-sized horses, menacing alligators, early flying bats, and one of the first primates.
A view of one of the commercial quarries where fossils from the Green River Formation are collected.
50 million years ago, in the Eocene epoch, these fish thrived in Fossil Lake, which was fed by the Uinta and Rocky Mountain highlands. The anoxic conditions at the bottom of Fossil Lake slowed bacterial decomposition, prevented scavengers from disturbing corpses, and, most interestingly, suffocated creatures that ventured into the oxygen-starved aquatic layer. The result is a miraculous exhibition of Eocene biota: a subtropical aquatic community within sycamore forests, teeming with creatures such as freshwater stingrays, dog-sized horses, menacing alligators, early flying bats, and one of the first primates.
A view of one of the commercial quarries where fossils from the Green River Formation are collected.
SPECIES
Knightia alta
LOCATION
Kemmerer, WY
FORMATION
Green River Formation
SIZE
5.1" on 7.8 x 4.7" rock
CATEGORY
SUB CATEGORY
ITEM
#144208
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