Borers Of Some Type

[Roz]

This was from a trip to one of my sites a few days ago.. It was the first time

I have had a police officer stop in years and I have to say was the most

friendly one I have ever met.. Keep in mind he had seen my car and no person.

I was sitting on a rock taking a break because it was extremely hot. I had on

wrecked clothes, a wet towel around my neck, my collecting ziplock bag at my

feet.. Next to me were empty beer bottles and a huge bottle of whiskey (not mine).

I must have presented quite the picture.. He was checking to see if I was ok and

didn't even ask me what I was doing but I did offer the information.. We talked for

a few minutes and he just mentioned how hot it was and if I needed anything just call.

So here's a shout out to all the friendly, helpful officers out there!!

This fossil looks like it was taken over by some kind of borer. I was just wondering

if it was possible to ID what kind of critters these were.. I find this kind of thing

peaks my interest.. It looks like the host was some type of shell.

Here are the images

[Indy]

I see the holes and cavities ...

However, I don't see "obvious" borings or predator attacks.

Looking forward to what others say.

[Wrangellian]

The cavities might be left behind by some fossil bits that were dissolved, it's common in my area. I guess we won't know unless you can get a magnification of some individual cavities to look for characteristic biological shapes.

[Roz]

This would have a cavity if it wasn't on it but I think it's too large

to be the predator.. It has the holes in it too..

[old dead things]

I'm not sure my pictures are clear enough, but the circles on the wood are Teredo clams that have bored into this wood found in the Hell Creek formation in southeastern Montana. This is just for comparison for the borers in your post.

Jim

Old Dead Things

[Roz]

Thanks, Jim! I think that is very possible what mine are too!