From Trace Fossils article on “Geological Digressions” http://www.geological-digressions.com/someone-passed-this-way-tracks-trails-impressions-and-footprints
1c trace fossils 22
Skip to content
A Blog About Stone Gathering, Tumbling and Polishing, and Rocks and Landscapes, from New Zealand – With Musical Interludes (john.tumblestone@gmail.com)