Asthenopodichnium Fossil
KU Ichnology
ichnology.ku.edu
KU Ichnology
http://ichnology.ku.edu/invertebrate_traces/tfimages/asthenopodichnium.html
Asthenopodichnium Fossil
Wikimedia Commons
commons.wikimedia.org
Asthenopodichnium Fossil
Mineralienatlas & Fossilienatlas
www.mineralienatlas.de