AU79
Jr. Member
- Apr 24, 2004
- 36
- 0
I found these Strange mounds in the Eagle Sandstone north of Billings Montana, I spoke to a Geologist at MSU and he said he thought they were fossil Ammonites but they dont have a spiral shape and some of the mounds have interconnecting tunnels as though the organism moved under the sand. Any Ideas photos http://www.flickr.com/photos/74583211@N03/sets/72157628925927805/