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Eocene Fossil Leaves - Green River Formation
This is a 5.6" wide plate of shale with two fossil leaves from the Eocene-aged Green River Formation, collected at Lindgren quarry in Kemmerer, Wyoming. The leaves have dark-orange coloration which contrasts well against the shale. The partial leaf of the genus Rhus (sumac). The complete leaf measures 1.35" long and is unidentified.
This specimen includes a metal/acrylic stand.
This specimen includes a metal/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
Rhus sp. (Sumac Leaf) & Unidentified Leaf
LOCATION
Lindgren Quarry, Kemmerer, Wyoming
FORMATION
Green River Formation, "Gastropod Layer"
SIZE
Complete Leaf: 1.35" long, Shale: 5.6 x 4.4"
CATEGORY
SUB CATEGORY
ITEM
#257036
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