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Little fossil found


Caroboneferous

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My sister found this little fossil, she found it in a lot of loose fossils, trying to see what it is.  Any ideas?   I’m thinking coral?

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It’s a curious-looking piece. I agree with @Al Dente that the flat face of the cone looks brachiopod-ish. The outside of the conic part, from what I can see, doesn’t really resemble horn coral. (I’m using my phone, or I’d post a picture. Just hard to do with a mobile device.) But the hemisected, flat part of the cone looks like it has a woven pattern that looks kind of organic. And the larger tube-like stripe down the length of the center of this part is hard to ignore. Some sort of sponge perhaps? It’s hard to tell without seeing it up close and personal. 

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I think oyo is right on the money. 

Calceola images

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13 hours ago, Caroboneferous said:

My sister found this little fossil, she found it in a lot of loose fossils, trying to see what it is.


Was this found in the Kansas City area? If so, that would rule out Calceola which is Devonian and Rhyzophyllum which is Silurian. Looks very much like a brachiopod to me. Maybe @Missourian has seen similar from the area. Here’s another similar brach I found online. 
 

 

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Stratigraphic range of Calceola - lower Devonian to middle Devonian.

Stratigraphic range of Rhizophyllum - middle Silurian to middle Devonian.

Calceola is a genus not present in North América. If materials are from North América probably is not Calceola.

Location and stratigraphy needed. As always.

Edited by oyo
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21 hours ago, Al Dente said:


Was this found in the Kansas City area? If so, that would rule out Calceola which is Devonian and Rhyzophyllum which is Silurian. Looks very much like a brachiopod to me. Maybe @Missourian has seen similar from the area. Here’s another similar brach I found online.

 

I haven't seen anything like it in the Pennsylvanian around KC.

 

It does have a rudist 'feel' to it.

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Context is critical.

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It would help to have some context.  Where did this come from?  Was it found somewhere in the Kansas City area?  If the location is not known it might be very helpful to see some of the other fossils in the "lot of loose fossils". 

Personally I am inclined towards it being a brachiopod, but there are some corals with a flat side and an operculum that have a very similar exterior.  Having an idea of the age of the fossil could be very useful to resolve the issue.

 

Don

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