swirl pattern

[grg1109]

Here's one that's a bit different...any ideas?  Approx. 3/4" X 1/2"  Found in unnamed creek near King Ferry, NY... I think it's from the Upper Tully Limestone

Thanks

Greg

[grg1109]

Found in this rock:

[Kane]

Gives me a rugose coral vibe.

[Ludwigia]

+1 for coral.

[grg1109]

1 hour ago, Kane said:

Gives me a rugose coral vibe.

I did find a rugose on this same rock.  Your ID gave me an idea.  So I went to wash it and a lot of rock "disintegrated" leaving me these extra photos.  The blue lines indicate where the "fossil" travels through the rock to the other side.

 

[grg1109]

A closer look to the opposite side

[Kane]

As I'm seeing septae, I am more convinced you found a nice, long coral. They could attain some eye-popping proportions.  

[grg1109]

46 minutes ago, Kane said:

I am more convinced you found a nice, long coral

Does this go by another name?

Thanks

Greg

[Kane]

Sorry, I am not as knowledgeable on Devonian rugose coral despite my running into them (very) frequently, as my focus is on trilobites. In determining coral species, sometimes that takes acetate peels.

[Rockwood]

9 hours ago, grg1109 said:

Does this go by another name?

Horn coral.

They are adapted primarily to soft bottom conditions. The bending and twisting is a result of slight displacement and their response to it.

[grg1109]

Aren't the septae rather large or am I looking at the wrong thing...I'm thinking the septae are the brown and white things.  Oh wait...on the bottom of the photo...do they look a whiteish color, while on the top darker?

Thanks

Greg

[Rockwood]

5 minutes ago, grg1109 said:

Aren't the septae rather large or am I looking at the wrong thing...I'm thinking the septae are the brown and white things.

Thanks

Greg

Just the white. The brown is the vacant living space.

[grg1109]

Ok, got it...Thank You

Greg

[grg1109]

Found another:

Greg

[grg1109]

And my first one of these:

[Rockwood]

Tabulate. Likely favositid.