Impressions from a Lost World: The Discovery of Dinosaur Footprints

Fossilized Worm Burrows

zoomable artifact image here

Worm burrows are another feature often found in sandstone that contains fossil traces. It is a kind of bioturbation, the preserved marks of plant or animal activity, including the burrowing of worms, insects, mussels, or clams, for example. Although Hitchcock named more than 50 species of invertebrate ichnofossils from the Hartford and Deerfield basins, these traces may never be confidently related to the exact organism that made them. 

Courtesy of:
Daniel A. Vellone, Northeast Regional Geologist, USDA Natural Resources Conservation Service