Unknown Wyoming Find 2

[skiman1016]

I found this rock just outside of Riverton, Wyoming in an area with a lot of chalcedony. I believe the surrounding material is from the Wind River formation. I am unsure if this is some sort of fossil or an interesting rock. Any information would be helpful.This was from the same location as the rock in my previous posting:

I believe the surrounding material is from the Wind River formation. I am unsure if this is some sort of fossil or an interesting rock. Any information would be helpful.

Edited August 23, 2018 by skiman1016