Specimen 142550 – myFOSSIL

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Phillip Kaess posted a new specimen in the group What is it? from the myFOSSIL app. 2 years ago

2 years ago

2 years ago

Phillip Kaess has contributed specimen mFeM 142550 to myFOSSIL!
- Ben Gurney replied 2 years ago
  
  looks to me like some form of brachiopod (not bivalve as the different valves are not equal) and the small hole you see at the top of the specimen is the pedicle or foot, a muscle would extend out to connect it to the seabed
- Ben Gurney replied 2 years ago
  
  very cool specimen
- Ben Gurney replied 2 years ago
  
  also if you have a look on image 2 there is a second brachipod half revealed if you fancied popping it out, should be pretty good as well
- Ben Gurney replied 2 years ago
  
  unfortunately I have no idea what brachiopod it is, if you google the geology of the area you found it, it should say how old the rocks are then if you google brachiopods that were alive at the time then it should be pretty easy to distinguish which one it is as they often have distinguished features
- Ben Gurney replied 2 years ago
  
  sorry can’t be of much more help only a geology student at the moment, but any further enquires give me an @ and I will do my best
- Phillip Kaess replied 2 years ago
  
  Here in Springdale Arkansas the fossils are from 340 to 400 million years
- Ben Gurney replied 2 years ago
  
  so most probably carboniferous, I’ll have a look for you
- Ben Gurney replied 2 years ago
  
  due to the shells I’m struggling to find an exact idea, as the ribs of the shell have been rounded of during fluvial movements before fossilization, however it could be a relative of athyris or composista
- Ben Gurney replied 2 years ago
  
  however,I’m afraid I can’t be of exact help, very hard to identify specimens without having them in your hand
- Phillip Kaess replied 2 years ago
  
  I just posted a couple more pictures of it, the end Had a little white horn like peace to it that has been unfortunately lost. Looked like a beak
- Phillip Kaess replied 2 years ago
  
  Thank you so much Ben
- Mason Hintermeister replied 2 years ago
  
  Nice brachiopod steinkern, or internal mold!

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