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The Archaeonycteris species flew at moderate altitudes and speed
The feeding habits of Therizinosaurus are unknown since no skull material has ever been found that could indicate their diet
Fossil Guide
Formation: Nemegt
Priscacara, Authentic 5.75 Inch Green River Fossil Fish Troodon The Archaeonycteris species flew atThe genus Priscacara is perhaps the most popular of the Green River fish fossils. A member of the Family Priscacaridae, the name Priscacara means "primitive head". Shaped rather like a sunfish, the genus sports sturdy, protective dorsal and anal spines. Among the two species, liops and serrata, serrata is uncommon. Liops is the smaller species, never exceeding 6 inches, whereas serrata have been found up to 14 inches. The genus went extinct at the end
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