Impressions from a Lost World: The Discovery of Dinosaur Footprints

Fossil of Water Ripples

zoomable artifact image here

This slab shows the distinctive water ripple marks, interference waves that form as shallow water is moved in multiple directions by wind. Note also a patch of a subsequent layer of mud that lithified (transformed into stone) over the original marks.

Accession #:
Courtesy of:
Beneski Museum of Natural History at Amherst College, photograph by Ed Gregory