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dorky

need help identifying this

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dorky

I went camping today. ok,  not really camping.  just picnicking at a campsite in the woods. we didn't stay over night because it is far too cold.  

so I found this rock with these cool indentions and want to know what it is. at first I thought it was by a tool but it's not.  

 

thanks,  dorky

 

20201017_220507.jpg

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I_gotta_rock

This are crinoid stem sections seen as cross-sections. Commonly called sea lilies. If you tell where abouts in Maryland, we can probably give you and approximate age, too.

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dorky

omg that's so cool! I got it in greenridge state forest WAY up in the mountains.  Flintstone in garrett county. 

thank you so much!

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dorky
On 10/17/2020 at 11:37 PM, I_gotta_rock said:

This are crinoid stem sections seen as cross-sections. Commonly called sea lilies. If you tell where abouts in Maryland, we can probably give you and approximate age, too.

any idea gotta rock?

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Ludwigia
2 hours ago, dorky said:

any idea gotta rock?

Your chances of reaching him are better when you do this: @I_gotta_rock

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I_gotta_rock

I found a geological survey map for you. Your fossils are Devonian, somewhere between 345 and 405 million years old as of the time this was published. The official times may have been redefined a bit. 

 

By the way, I'm a her (-:

--Heather

 

Here's the map: MDGeo1967.jpg?sequence=2&isAllowed=y

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Mahnmut

Hello Dorky,

These resemble very much the devonian crinoid stem sections traditionally known hereabout as "Bonifatiuspfennige" =St. Boniface's pennies".

Nice find.

Cheers,

J

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dorky
On 10/20/2020 at 7:50 PM, I_gotta_rock said:

I found a geological survey map for you. Your fossils are Devonian, somewhere between 345 and 405 million years old as of the time this was published. The official times may have been redefined a bit. 

 

By the way, I'm a her (-:

--Heather

 

Here's the map: MDGeo1967.jpg?sequence=2&isAllowed=y

holy cow that's old! thank you so much Heather @I_gotta_rock

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dorky
On 10/21/2020 at 11:26 AM, Mahnmut said:

Hello Dorky,

These resemble very much the devonian crinoid stem sections traditionally known hereabout as "Bonifatiuspfennige" =St. Boniface's pennies".

Nice find.

Cheers,

J

thank you so much! 

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