minnbuckeye Posted November 5, 2019 Share Posted November 5, 2019 Here is a piece I saved on a recent excursion to the Devonian Cedar Valley Formation of Iowa. It looks like a thumbtack!!! I am guessing a tentaculites abutting an ostrocod, but would like other opinions. Thanks, Mike 6 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted November 5, 2019 Share Posted November 5, 2019 Nice. I think you're right, Mike. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Bguild Posted November 5, 2019 Share Posted November 5, 2019 Yes, definitely looks like tentaculites to me. 1 Link to comment Share on other sites More sharing options...
ClearLake Posted November 5, 2019 Share Posted November 5, 2019 According to Wikipedia, the thumbtack was invented in the 1750's. While that is pretty old, it doesn't quite make it back to the Devonian. While your specimen could significantly change the known range of the thumbtack, I'm inclined to agree with the others and say that it looks a lot like a Tentaculites. The other part could be an ostracod, but could be a fragment of something else as well, hard to tell from the photo. I like it, it makes for a nice conversation piece!! 1 Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted November 5, 2019 Share Posted November 5, 2019 2 hours ago, ClearLake said: According to Wikipedia, the thumbtack was invented in the 1750's. While that is pretty old, it doesn't quite make it back to the Devonian. While your specimen could significantly change the known range of the thumbtack, I'm inclined to agree with the others and say that it looks a lot like a Tentaculites. The other part could be an ostracod, but could be a fragment of something else as well, hard to tell from the photo. I like it, it makes for a nice conversation piece!! I believe it's a t-handled ice screw, but I'm not sure if that pre-dates the thumbtack. However, it still doesn't quite make it back to the Devonian either. Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
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