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This story from Discover Magazine follows the career of paleontologist Stephen Hasiotis, who specializes in terrestrial ichnology, as he searches for the tracks of ancient invertebrates, even where a fossil record is lacking. This paper covers his studies of the ancient termite mounds of Gallup, New Mexico; his early work on crayfish burrows of Utah; his work in the Petrified Forest National Park in Arizona, including his discovery of a bees' nest in a forest area which is older than the rise of flowering plants; and his discovery of dermestid beetle markings on dinosaur fossils at the Dinosaur National Monument on the Utah-Colorado border.
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