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Diplomystus dentatus with Knightia in its mouth - Green River Formation Fossils - Fossil Butte National Monument, Wyoming

Diplomystus dentatus with Knightia in its mouth - Green River Formation Fossils - Fossil Butte National Monument, Wyoming

Fossil of Apateon pedestris

Fossil of Apateon pedestris

FOSSIL FISH WITH LEAVES Knightia sp., Populas wilmattae, Sapindaceae family Eocene Green River Formation, Kemmerer, Wyoming

FOSSIL FISH WITH LEAVES Knightia sp., Populas wilmattae, Sapindaceae family Eocene Green River Formation, Kemmerer, Wyoming

Squatinactis montanus has the teeth, jaws and skull of a cladodont-toothed shark. Its body resembles that of the modern skates, rays, or angel sharks in being dorsoventrally flattened and having its pectoral fins greatly extended to the sides. S. montanus probably used the wing-like pectoral fins as well as the whip tail for propulsion. This body design has recurred several times in the fossil record for bottom-living lurking predators. They ranged in size to 2 feet.

Squatinactis montanus has the teeth, jaws and skull of a cladodont-toothed shark. Its body resembles that of the modern skates, rays, or angel sharks in being dorsoventrally flattened and having its pectoral fins greatly extended to the sides. S. montanus probably used the wing-like pectoral fins as well as the whip tail for propulsion. This body design has recurred several times in the fossil record for bottom-living lurking predators. They ranged in size to 2 feet.

Rare Eocene bird feather fossil - Green River fm, Rio Blanco co, Colorado

Rare Eocene bird feather fossil - Green River fm, Rio Blanco co, Colorado

FOSSIL PALM FLOWER - The Curator's Eye  | In China? try www.importedFun.com for Award Winning Kid's Science |

FOSSIL PALM FLOWER - The Curator's Eye | In China? try www.importedFun.com for Award Winning Kid's Science |

Fossil Ediacaran - These soft-bodied animals appeared 575 million years ago during the Ediacaran geological period. They lived in the ocean and grew some 6.5' (2 m) in length

Fossil Ediacaran - These soft-bodied animals appeared 575 million years ago during the Ediacaran geological period. They lived in the ocean and grew some 6.5' (2 m) in length

Dragonfly fossil, geological time: Lower Cretaceous (128 million years ago), Liaoning Province, China

Dragonfly fossil, geological time: Lower Cretaceous (128 million years ago), Liaoning Province, China

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