Another backbone maybe?

[Snee]

My older brother gave me a bunch of rocks and stuff when I was a little kid.? I think this one's cool.? I'm assuming it's a backbone or something.? I can't think what else it could be.? The fossil measures 2" by 3/4".? Thanks for the help!

 

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[dnewbury2]

I think that's a crinoid stem also known as a sea lily.

 

[Snee]

I may be wrong, but just like the other fossil I have posted on another post, it has few characteristics similar to crinoid stems. I have a lot of those and I've been searching pictures online of them and they aren't similar. But at the same time, I can't find anything similar to either of them. So I'm wondering if anyone has seen anything like them...

 

[futzman]

My older brother gave me a bunch of rocks and stuff when I was a little kid.? I think this one's cool.? I'm assuming it's a backbone or something.? I can't think what else it could be.? The fossil measures 2" by 3/4".? Thanks for the help!

Here's what you may have:

This is a cephalopod from the Devonian period. The picture is a scan from a page in "Index Fossils of North America" by Shimer & Shrock, 1955.

Richard

 

[Snee]

Thanks a lot Richard!