Ichnology:Anthony J. Martin's extensive and comprehensive website about plant and animal trace fossils. Includes information on all aspects of studying traces fossils, the Ichnology Newsletter, Trace Fossil Image Database, a trace fossil bibliography, and links to related websites.Ichnology Research Group: A multidisciplinary team of graduate and postgraduate researchers at the University of Alberta led by Professor S. George Pemberton working on trace fossil problems.Precambrian Fossils: Possible Precambrian trace fossils collected in the Van Horn region of Texas.Virtual Ichnology: Computer model of trace fossil development through time. Part of the Computational Paleontology website.