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More Texas Pennsylvanian Oddities -Bridgeport


JamieLynn

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Howdy all! A few more odd finds from the Bridgeport Pennsylvanian matrix.  I could use your help!

 

1. Size 1/4 inch   The first one looks maybe like one of the sponge Girtycoelia surrounded by ...something. A bryzoan perhaps? It does not look like any bryzoan i know, but i know very little about the Pennsylvanian (although I did get the Color Guide on CD! yay!) 

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Close up

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2. This thing:  Size 1/16th inch.  I thought it was a seedpod originally (which in my previous posts....yeah, those were indeed seed pods...finally crushed on of them). I tried to crush this one, but it didn't....sooo....   any thoughts?

 

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3. And Lastly - this thing.  - has a weird "dimpled" end? Found in both the Bridgeport and the Mineral Wells matrix.  1/4 inch

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Thanks for any help! 

 

 

 

 

 

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Hey JL, you have the neatest posts with the most unusual finds in areas that I have often searched before (and before I discovered micro-fossil hunting - thanks @digit !)  -_-

 

I can help with the last one with the dimpled end.  It is a crinoid spine.  See a similar picture at http://www.catnapin.com/Fossil/Echinoidermata/ffCrinoids.htm - about the 4th photo down.  @BobWill might be of some help with the others.

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The first one looks like a bryozoan (edit: as already stated above).

Context is critical.

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Thanks Bob for getting me off the fence to give a reply; I was lurking.

 

The seed looks like a Celtis sp., Hackberry, which are really hard silica rich seeds that are common in Texas. A plant biologist might give a better answer. See photo of seed with distinctive rim and attachment point. See link to TFF post with photo from Wildflower.org.

 

http://www.thefossilforum.com/index.php?/topic/68530-fossil-or-seed/&do=findComment&comment=720888

 

The first photo looks like incrusting bryozoans, (Fistulipora incrustans?) on a possible sponge. If the sponge looks like a ball attached to a neck then, Girtocoelia (with an o) not Girtcoelia is likely. I think that I see a ball with a stem in your photo. 

 

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Edited by DPS Ammonite
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My goal is to leave no stone or fossil unturned.   

See my Arizona Paleontology Guide    link  The best single resource for Arizona paleontology anywhere.       

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