Smithsonian Digs Into Extraordinary Fossil Collection

Two fossil crane flies flank an extraordinarily preserved tree hopper. Wing pigmentation, although not the original color, can still be seen on the tree hopper's stiff front wings. The lines running through the membranous hind wings are veins.

(Image credit: Courtesy of Conrad Labandeira and Finnegan Marsh, Department of Paleobiology, Smithsonian)

This Research in Action article was provided to LiveScience in partnership with the National Science Foundation.

This well-preserved fossilized tree hopper, flanked by two fossil crane flies, is one specimen from of an extraordinary fossil collection donated to the Smithsonian National Museum of Natural History by an amateur paleontologist between 1992 and 2003.

The collection from citizen scientist and Colorado resident David Kohls is helping scientists in the museum's Department of Paleobiology (LINK) as well as visiting researchers gain exciting new insights into insect evolution, feeding strategies and ecology. Thanks to Kohls, these scientists have access to more than 120,000 fossils preserved in lake sediments about 48 million years ago — insects, spiders, leaves, flowers and small vertebrates.

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"The insect collection features superb preservation; color differences, body hair patterns, delicate mouthpart details, eye facets and even male and female genitalia can be discerned. The insects represent 18 orders (major taxonomic groups), and, because Kohls didn't favor one type of insect over others, his collection is one of the few unbiased representations of abundant, fossil insect assemblages in the world. This makes it ideal for ecological research."

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