Fossils of the Green River Formation

Vertebrate Fossils

Gallinuloides wyomingensis A basal galliform bird		Lepisosteus simplex (gar fish - 29 inches) Very rare	Chelidridae Snapping Turtle	Icaronycteris Fossil Bat (oldest known flying mammal in the fossil record)

Gallinuloides wyomingensis A basal galliform bird
Plant Fossils

Acer sp. Green River Shale, Wardell Ranch, Colorado	Plant Fossils Association Green River Shale, Uintah County, Utah		Zelkova sp. Green River Shale, Uintah County, Utah	Platanus wyomingensis Green River Formation, Colorado

Dilodendron foreale Green River Shale, Uintah County, Utah	Populus willmattae Green River Shale, Uintah County, Utah		Leguminosites lesquereuxiana Green River Shale, Uintah County, Utah	Araliophyllum quina Green River Shale, Uintah County, Utah

Beetle in a rare association with a fossil flower. Green River Shale, Uintah County, Utah	Dilodendron foreale Green River Shale, Wardell Ranch, Colorado		Cercidiphyllum sp. Green River Shale, Wyoming	Lygodium kaulfussi Climbing Fern; Family: Schizaeaceae Green River Shale, Uintah County, Utah

Cardiospermum coloradensis Family Sapindaceae Green River Shale, Uintah County, Utah	Palm Frond - 5' tall Sabalites Green River Shale, Wyoming
Invertebrates

Crayfish Procambarus primaevus Order Decapoda; Family Cambaridae Fossil Lake, Kemmerer, Wyoming		Bechleja rostrata Shrimp Order Decapoda; Family Palaemonidae Fossil Lake, Kemmerer, Wyoming
Stromatolites

Stromatolites Chlorellopsis sp. Middle Eocene Green River Formation, Tipton Shale Member, Green River Basin, Wyoming Specimen has been polished by wind and sand. May be of algal biogenic origin.	Chlorellopsis sp. Eocene Green River Formation, Colorado Interestingly, this Cryptozoon type stromatolite was very likely to have been built by plant-like green or red, algae (Chlorophycophyta), as opposed to cyanobacteria (that are Eubacteria). It is hypothesized that red and green algae appeared some 800 million years ago having acquired chloroplasts from eukaryotes through endosymbiosis to carry out photosynthetic metabolism using sunlight for their energy needs.
Insect Fossils

9 mm Weevil Family: Curculionidae Eocene Green River Shale, Uintah County, Utah	Scorpionfly Diptera: Mecoptera Green River Shale, Uintah County, Utah		Mosquito Diptera: Culiclidae Green River Shale, Uintah County, Utah	Damselfly Odonata: Chlorocyphidae Green River Shale, Uintah County, Utah

Dipterans: Robber Fly and Cranefly Uintah County, Utah	Planthopper Homoptera: Fulgoridae Green River Shale, Uintah County, Utah		Cricket and Cranefly Orders Orthoptera and Diptera
Ichnofossils

	Extinct Brontotheriid Fossil Tracks Green River Formation, Sevier County, Utah