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Rare, 2.1" Fossil Crayfish (Procambarus) - Green River Formation
This is a rare, well preserved 2.1" fossil crayfish (Procambarus) from the Green River Formation, Kemmerer, Wyoming. This beautiful specimen is the ventral (underside) view and shows the tail, swimmerets, legs and one claw. Under magnification, antennae and other fine details become visible. This really is an interesting and unusual specimen.
Comes with an acrylic stand.
Comes with an acrylic 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
Procambrus primaevus
LOCATION
Fossil Safari Quarry, Kemmerer, Wyoming
FORMATION
Green River Formation
SIZE
2.1" crayfish, 5.4 x 5.0" shale
CATEGORY
ITEM
#113461
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