This 2,600-pound sandstone contains 500-million-year-old animal tracks . The fossil, donated by Eden Stone Company , is from Marathon County, Wisconsin and dates to the middle to late Cambrian period. The rock surface contains ripple marks and a fossil track named Diplichnites. The footprints were produced by a euthycarcinoid—an extinct, primitive arthropod.
Item Image
Accession Number
29379
129