Mschaecer81 Posted July 29, 2017 Share Posted July 29, 2017 Found near Green Bay, WI. The Maquoketa Formation. Interesting fossil not sure what is it as its lil unusual Link to comment Share on other sites More sharing options...
abyssunder Posted July 29, 2017 Share Posted July 29, 2017 Maybe it's a crinoid columnal fragment. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
caldigger Posted July 29, 2017 Share Posted July 29, 2017 I would say it could stand a bit more prep work. Are those turritella snails I see around it? Link to comment Share on other sites More sharing options...
Mschaecer81 Posted July 29, 2017 Author Share Posted July 29, 2017 Forget to put scale in the pic but fossil is just under one inch so I doubt it's crinoid stem. Horn coral? Trilobite fragment? Link to comment Share on other sites More sharing options...
Kane Posted July 29, 2017 Share Posted July 29, 2017 I think coral might be a good guess. Don't think it is a trilobite fragment, though. ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
abyssunder Posted July 29, 2017 Share Posted July 29, 2017 There are crinoid columnals (forming crinoid stems) with that dimension, so it could be very well one of them. Turritella exist from the Cretaceous, it is too young for the Ordovician. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Miocene_Mason Posted July 29, 2017 Share Posted July 29, 2017 What's the size? My first thought was ammonite, but if it's small I'd say crinoid segment as well. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Al Dente Posted July 29, 2017 Share Posted July 29, 2017 Looks like the inside surface of a brachiopod valve. 6 Link to comment Share on other sites More sharing options...
Innocentx Posted July 29, 2017 Share Posted July 29, 2017 Mr. Dente. I agree. As in figure E. 4 "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
minnbuckeye Posted July 29, 2017 Share Posted July 29, 2017 You beat me to the answer. I could not rapidly find a good pic. What I like about this brachiopod is that the convex side of the shell is actually the inner aspect as is obvious by the LARGE muscular attachment site. Until I understood it's anatomy, the muscular scar always confused me. So your example is the inside surface of this brachiopod. Nice example!!!! Link to comment Share on other sites More sharing options...
Peat Burns Posted July 30, 2017 Share Posted July 30, 2017 12 minutes ago, Innocentx said: Mr. Dente. I agree. As in figure E. +1 for interior valve of Strophomenid Link to comment Share on other sites More sharing options...
FossilDAWG Posted July 30, 2017 Share Posted July 30, 2017 Late to the party, but definitely the interior of a strophomenid brachiopod. Don Link to comment Share on other sites More sharing options...
Innocentx Posted July 30, 2017 Share Posted July 30, 2017 @Al Dente called it. "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
Mschaecer81 Posted July 30, 2017 Author Share Posted July 30, 2017 Where you found the inform? Can you give me link? Link to comment Share on other sites More sharing options...
doushantuo Posted July 30, 2017 Share Posted July 30, 2017 Need i post this pdf? Link to comment Share on other sites More sharing options...
doushantuo Posted July 30, 2017 Share Posted July 30, 2017 Rong et al,Paleontology 1994 outtake above,article recommended by yours truly 2 Link to comment Share on other sites More sharing options...
abyssunder Posted July 30, 2017 Share Posted July 30, 2017 Yup, Al Dente is right! " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Innocentx Posted July 30, 2017 Share Posted July 30, 2017 @Mschaecer81 The info image is from http://slideplayer.com/slide/7479312/24/images/33/Back+to+Strophomena+page.jpg I happened across another great image that matches yours a bit better (found on pinterest so don't know where from). I think you'll see the similarity. "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
Mschaecer81 Posted August 2, 2017 Author Share Posted August 2, 2017 Yes I can see similar. Thank you. Link to comment Share on other sites More sharing options...
Mschaecer81 Posted August 2, 2017 Author Share Posted August 2, 2017 Was in Milwaukee for last few days. My son found this by the river. It was golf ball sized Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 2, 2017 Share Posted August 2, 2017 6 minutes ago, Mschaecer81 said: Was in Milwaukee for last few days. My son found this by the river. It was golf ball sized Can we have a picture of the part it's resting on, I'm suspecting horn coral but could be a bivalve or brachiopod. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Mschaecer81 Posted August 2, 2017 Author Share Posted August 2, 2017 Was in Milwaukee for last few days. My son found this by the river. It was golf ball sized Link to comment Share on other sites More sharing options...
Al Dente Posted August 2, 2017 Share Posted August 2, 2017 It's a brachiopod. Probably Atrypa. 1 Link to comment Share on other sites More sharing options...
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