What in the world is this

[Kool777]

What is this? Found in Raytown, MO.

 

 

 

 

 

 

 

 

 

 

 

 

 

[Ludwigia]

Please post your photos directly.

[Fossildude19]

9 hours ago, Ludwigia said:

Please post your photos directly.

 

She did - they were in .HEIC Format.
I converted them to .JPG

[HuckMucus]

I've got a baculite that has those weird things "growing" all over it (or "clinging to it).  Mine is not pointed like that, but my curiosity is about the stuff clinging to the surface.  

Edited June 5, 2022 by HuckMucus

[Kool777]

On 6/5/2022 at 11:55 AM, Fossildude19 said:

 

She did - they were in .HEIC Format.
I converted them to .JPG

 

On 6/5/2022 at 11:55 AM, Fossildude19 said:

 

She did - they were in .HEIC Format.
I converted them to .JPG

 

[Kool777]

Just now, Kool777 said:

Thanks

 

 

[Kool777]

On 6/5/2022 at 4:19 PM, HuckMucus said:

I've got a baculite that has those weird things "growing" all over it (or "clinging to it).  Mine is not pointed like that, but my curiosity is about the stuff clinging to the surface.  

Someone told me horned coral covered in silica 

[HuckMucus]

4 minutes ago, Kool777 said:

Someone told me horned coral covered in silica 

Hmmm?  The horn coral I can understand.  And I can see silica being the material that the surface is made of, but I'm talking about those "things" all over it (that give the unsmooth texture).  Unless those things are called silicas.  I've never heard that before.

 

Edited June 8, 2022 by HuckMucus
clarify

[Fossildude19]

I see no evidence of Rugose (horn) coral here. 

No morphology present - no anatomy visible.

 

 

Looks like an interestingly shaped piece of chert, to me. 

[Plax]

Was thinking the filling of a pinna-like mollusk. Filling would include preserved burrows running along the inner edge and of course any other cavity inhabitants. Shell is gone. If this isn't oval in cross section I'm wrong. This is just a suggestion, not an ID.

Edited June 8, 2022 by Plax
spelling

[Fossildude19]

13 minutes ago, Plax said:

Was thinking the filling of a pinna-like mollusk. Filling would include preserved burrows running along the inner edge and of course any other cavity inhabitants. Shell is gone. If this isn't oval in cross section I'm wrong. This is just a suggestion, not an ID.

 

Jackson County looks to be mostly Pennsylvanian in age.

 

 

 

The item itself looks to be more shaped like a wedge shaped type door stop, rather than oval. 

 

 

[Plax]

wikipedia says Pinna goes back to the carboniferous so guess my guess is not too outlandish.

[Paleorunner]

38 minutes ago, Plax said:

wikipedia says Pinna goes back to the carboniferous so guess my guess is not too outlandish.

It is not unreasonable to think of an internal mold of Pinna. 

[Missourian]

It probably is limestone containing phylloid algae, which basically are blade-like seaweed that were biologically calcified before burial.

 

The conical shape of your piece is suggestive, but may just be happenstance.

 

Here is a similar specimen, with several stringers of algae, also from the KC metro:

 

 

[DPS Ammonite]

52 minutes ago, Missourian said:

It probably is limestone containing phylloid algae, which basically are blade-like seaweed that were biologically calcified before burial.

 

Phylloid algae are calcareous by definition. They are not soft algae that later became calcified during fossilization.

 

See first page:

 

https://www.kgs.ku.edu/Current/2005/sawin/sawinandwest.pdf

 

West, R.S., and West, R.R., 2005, Paleoecology of the Permian (Wolfcampian) Phylloid Alga Calcipatera from an In Situ Occurrence in Kansas, U.S.A.; in, Current Research in Earth Sciences: Kansas Geological Survey, Bulletin 251, part 1. http://www.kgs.ku.edu/Current/2005/sawin/index.html (date on which you viewed the online article).

[Missourian]

7 hours ago, DPS Ammonite said:

Phylloid algae are calcareous by definition. They are not soft algae that later became calcified during fossilization.

 

Yes, they become calcified while living.

[Missourian]

For reference, here is a thread featuring various algae, including phylloid forms:

 

 

[HuckMucus]

Some of it reminds me of desiccated holdtights.