Hill Annex Mine Fossil Gallery
Fossils From the Cretaceous Era Coleraine Formation in Calumet, MN
Fossils found on September 13, 2016
Click the image for the full resolution photograph.
Snail fossil
and Aphid
Gastropod
fragments
Fish Vertebra
Mussel fossil
Clam fossil
Fossils
Ichthyodectes tooth