Baby Dinosaur..

[BC1969]

Click bait!!
Inconclusive results.
I've had a few geologists say horn coral and I've had others say that it is a small animal of some sort.
You decide.

 

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[Plumbata]

Looks like a side-view of the conjoined tubular cells making up a halysites "Chain Coral" colony. They are my favorite creek-walking fossil coral to find.

 

[BC1969]

That's really neat!
Was the fossil exposed like that already, or did you etch it?
Either way, thanks for sharing.

 

[Plumbata]

That is just a google pic, I have rather more awesome examples than that floating around though, some with the host rock naturally eroded/dissolved like the piece in the pic and others being glacial cobbles with the "chains" raised only slightly above the limestone surface. It depends on the piece and the host rock and whether or not the fossil has been replaced with silica (if it's calcite then only a quick dip to clean and brighten is advised) but sometimes a long soaking in HCl will produce extraordinary results.

I've found a few where the fossil and host rock have been converted to chert (I'd die on the spot if I found an indian arrowhead made out of material like that), and suspect they could be shaped and polished into some spectacular pieces.

Anyway, if you live in an area with glacial cobble streams then hunting around ought to turn up some better examples. You really can't miss 'em if you walk near one.

 

[BC1969]

I live in Michigan. We have it all.

 

[Plumbata]

Most of mine came from Illinois so you should have plenty in Michigan, good luck!

 

[A2coins]

Thats really cool They have fou d Dinasour bones in Dexter Mi