Last updated on April 16, 2014 at 17:11 EDT
The Long March
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"The Long March"

July 2, 2010
This painting, entitled "The Long March," depicts a herd of sauropod dinosaurs, Seismosaurus (Diplodocus) hallorum, migrating to new feeding areas during the seasonally dry environment of western North America's late Jurassic Period. Known from a huge, forty-percent-complete skeleton, Seismosaurus was discovered in the Brushy Basin Member of New Mexico's Morrison Formation by Dr. David Gillette and Wilson Bechtel. Associated with the skeleton were gastroliths, or "stomach stones," that may have aided digestion.