画質 高画質

in 1797 Thomas Jefferson (!) described Megalonyx, an ancient sloth--the beginning of American paleontology.

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more of my series for : Cleveland-Lloyd quarry mayhave been sticky mudtrap for predators/prey

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my depicting the "Poison" theory for the Cleveland-Lloyd mass-death dino site, currently at

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another of my quick sketches: glyptodont swimming pose, imagined w nearly neutral buoyancy

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my for the International Oceanic Drilling Program caricaturizing the Eocene-Paleocene climate shift

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Paleolithic Venus, drawn last night, pen on paper

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