unknown

[grg1109]

I've been working in rocks from the Middle Devonian Windom Shale of Central NY.  Although I've found some different "fossils/marine invertrabrates".  They are all "mud casts".  These two are unknown to me.  I posted some photos of my finds on another forum and someone came forward with a comment about the first of the two.  It was "Guilielmites umbonatus Geinitz??"   I tried looking on the internet and came up the the second photo, which looks similar to me...at the following link:    Do you know similar case about pseudo fossil Guilielmites Geinitz ? (researchgate.net)  But this article is from France...I can't seem to find an article from North America.  Does anyone here happen to recognize them?

Thanks

Greg

Edited November 8, 2021 by grg1109

[Rockwood]

10 minutes ago, grg1109 said:

Does anyone here happen to recognize them?

Sure; most if not all of these are crushed nautiloid shells. There is commonly a squish look to them. That's just what it is. Fluid sediment that is ejected during the compaction of sediment beds. 

[grg1109]

Ah, Thanks

Greg

[grg1109]

This is one of three species of Orthocone Nautiloids that I found.  It's hard to see in the photo, because I had to "stabilize" the bottom part...but it also has a squishy look to what would be the "inside" of it.

Greg

[Fossildude19]

Nice one, Greg.

 

Yup. These are what we call "Squish-Outs" They can be from any number of shelled creatures - I've found squish-out pelecypods, gastropods, and cephalopods.

 

Cropped and brightened:

 

 

 

I've circled a few items on the base piece that look interesting.
Any better pictures of those?

 

[grg1109]

Fossildude19:  The two circled on the right and then the one on the left.

Greg

Edited November 8, 2021 by grg1109

[Fossildude19]

Looks like 2 crinoid stem columnals/ossicles, and perhaps an inarticulate brachiopod. 

I thought maybe the bottom crinoid columnal was a goniatite, but was just a trick of the lighting.

[grg1109]

I decided to "clean up" the Guilielmites umbonatus to place on a diorama that I'm putting together. While cleaning the other side, I noticed a pattern...this is a photo of what I found. I'm thinking it was a Gastropod...but also thinking that I'm looking at it's side

Greg

Edited November 9, 2021 by grg1109