A bit long in the tooth... need help with ID.

[GibH]

Does anyone have any idea what this tooth belonged to? Bonus points for what ever the mollusk attached to it is as well Thanks!

 

[GibH]

Ok, I guess the shell was a spiny oyster.

 

[Kray Gelder]

It's kind of neat looking, but why do you think it's a tooth? Doesn't look like one from here.

 

[GibH]

It's kind of neat looking, but why do you think it's a tooth? Doesn't look like one from here.

I guess it was just the general shape of it. After reading your reply, I looked at it again. You are correct, it isn't a tooth, it's some kind of shell. Thanks!

 

[A2coins]

Thats crazy

 

[jgleaves]

What could be attached to the shell is what is left over from a burrowing organisms hole. The hole fills with sediment that cements together. When surrounding mud that turns into rock erodes, it leaves behind the cemented burrow mold. I have collected these when hunting shark teeth in Bakersfield, California at Shark tooth Hill.