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Chris 69

any ideas?

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Chris 69

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ynot

Coral head.

Others will give a species to it.

Tony

 

PS Welcome to TFF!

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Monica

Hi Chris!

 

You definitely have some colonial coral - you can clearly see the radiating septa - beautiful!

 

Where was it collected?  It might help others narrow down the identification of your specimen...

 

Welcome to the forum, by the way!

 

Monica

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Chris 69

Thanks for the welcome and help! This may be my new hobby! So cool!

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Chris 69

nw Illinois by the way

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tmaier

It looks to be an unglaciated Petoskey stone, a fossil colonial rugose coral of the species Hexagonaria percarinata. It is in really good condition.

At least it is likely to be in the genus Hexagonaria, I'm pretty sure.

https://en.wikipedia.org/wiki/Hexagonaria

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Chris 69

Thanks. Is it rare or should I look for more in the area?

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tmaier

If the coral is indeed Hexagonaria, then the place you are looking is from the Devonian period (about 400 million years old) and at that time Illinois was an ocean. You should look for more than just this coral, because you are likely to find a lot of other interesting things.

Looking on Google for "Devonian fossils Illinois" brings up a lot of good stuff...

https://www.google.com/search?q=Devonian+fossil+illinois&btnG=Search&hl=en&gbv=1&tbm=isch

Most the the Hexagonaria I've seen are the ones that have been picked up and moved over long distances by the glaciers and they are very rounded. This one you have is very fresh, so it is likely that you found it where it was grwoing 400 million years ago. that also means you aren't in an area of glacial debris, but are at a Devonian formation.

That means good fossil hunting.

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Chris 69

cool, thank you so much

 

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jpc

nice fossil, I think.  If  you take your pictures from further away and then trim them down, you might have better focus.  

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Fossildude19

Welcome to the Forum. :) 

 

I agree with Lithostrotionella sp. :)

Neat find - thanks for sharing it here.  

Regards, 

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tmaier

I retract Hexagonaria and vote for the Lithostrotionella.

That solves the mystery of the "perfect" Petoskey stone. They normally are not in that crisp condition.

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fifbrindacier
13 hours ago, tmaier said:

If the coral is indeed Hexagonaria, then the place you are looking is from the Devonian period (about 400 million years old) and at that time Illinois was an ocean. You should look for more than just this coral, because you are likely to find a lot of other interesting things.

Looking on Google for "Devonian fossils Illinois" brings up a lot of good stuff...

https://www.google.com/search?q=Devonian+fossil+illinois&btnG=Search&hl=en&gbv=1&tbm=isch

Most the the Hexagonaria I've seen are the ones that have been picked up and moved over long distances by the glaciers and they are very rounded. This one you have is very fresh, so it is likely that you found it where it was grwoing 400 million years ago. that also means you aren't in an area of glacial debris, but are at a Devonian formation.

That means good fossil hunting.
 

Yes, like trilobites.

Or cephalopods.

For example.

And, i love your coral.

And, it's really nice.

And, welcome from France.

And,... a coffee with cream please.:P

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Chris 69

Thank you all. This has been very helpful and interesting.

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digit

Cool coral. I'd definitely be back out there hunting that area to see what else it gives up.

 

 

Welcome to the forum.

 

 

Cheers.

 

-Ken

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