Rik's Mystery Fossils
This bone was collected on a ranch in Cochise Co. in Sept. 2000. It
appears to be a shoulder or hip bone but of what creature I cannot
figure out from Roemer or Carroll. Any constructive thoughts would
be welcome.
![](http://www.lpl.arizona.edu/~rhill/fossil/mystfos1.jpg)
This fossil is middle Cambrian. There is soft body preservation at this
site so it could be non-shelly. My best guess is a colonial sponge,
what's yours?
Send your guesses and suggestions to me at: rhill@lpl.arizona.edu