no idea what so ever

[grg1109]

I have no idea.  Suggestions have been: Crinoid Caylx or  ‘gumdrop’ bryozoan starting to grow a branch. Probably growing on a brachiopod or something.  Sorry forgot....found at Devonian, Penn Dixie, Hamburg, NY.

 

Edited August 24, 2021 by grg1109

[Fossildude19]

Where is it from?  (Info in the tags) 

Most people don't look at the tags, so it is important to put that information in the body of your post.  

[grg1109]

26 minutes ago, Fossildude19 said:

Most people don't look at the tags, so it is important to put that information in the body of your post

Sorry, I forgot that part.  Edited the original post.  Thanks

Greg

[Fossildude19]

To me, this looks like a cast interior section of orthocone nautiloid, with the siphuncle in place.

I'm not sure the preservation is good enough to tell, though. 

[tombk]

I wasn’t sure what it is until I read @Fossildude19’s idea. orthocone cast with siphuncle seems as good a guess as any. The “growth” on the top looks integral to the fossil, rather than a second creature attached to it. What’s the size of the specimen? 

[grg1109]

55 minutes ago, tombk said:

What’s the size of the specimen?

Approx. 7/16"

To me...it doesn't look like two attached pieces either.

Greg

Edited August 24, 2021 by grg1109

[grg1109]

I've actually just found another...slightly shorter and slightly larger in diameter.

Greg

[connorp]

I am getting a coral vibe.

[jpc]

crinoid holdfast?

 

[abyssunder]

Sponge?

[grg1109]

I wrote to Penn Dixie and this is what they replied:

 

"It looks like you've got the bottom half of a horn coral. The tip (top of photo) is the attachment point where the coral would have oozed some kind of calcitic gel to stick to a hard surface (rock, or some dead thing) on the ocean floor. The bottom side would have had the corralite which is where the soft body parts resided."

 

Thanks

Greg

[grg1109]

So I thought that I figured out what they were saying...but...I don't see it.  The straight piece doesn't look right.  These are all the different corals that I found from the same rocks.

Greg

Edited August 26, 2021 by grg1109

[grg1109]

 

 

On 8/24/2021 at 9:10 AM, Fossildude19 said:

this looks like a cast interior section of orthocone nautiloid, with the siphuncle in place.

 

Would it look something like the photo below?

Also, crinoid stem and calyx could make sense... however the "stem" has no pattern.

Greg

 

[Fossildude19]

In the picture above, the item on the left looks more coral like, to me.

The item on the right could be a crinoid holdfast, as those do not generally have any ornamentation.

Seems a bit of a mystery, I guess.