KCMOfossil Posted June 27, 2017 Share Posted June 27, 2017 This item is from the Winterset Limestone of the Kansas City Group in the Pennsylvanian subsystem. The two pictures below show the two exposed faces of the fossil. The first picture shows the circular face, the second shows the triangular/conical face. I could not find a way to take a picture that would show the entire fossil. The fossil is about 6 cm tall and 6 cm at the base (the circular face) and appears to me to form a geometric cone-shape that is spiraled. The circular face is concave and I have excavated some of the matrix from the center area. I'm interested in doing some further preparation on this item, but I wanted to know what I am dealing with before I proceed. Any help with an ID will be appreciated. My guess is a cephalopod. Russ Circular face: Triangular/conical face: Link to comment Share on other sites More sharing options...
ynot Posted June 27, 2017 Share Posted June 27, 2017 Looks like an ammonite to Me. (Edit:- got this part wrong) Others will be more precise on the species. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Missourian Posted June 27, 2017 Share Posted June 27, 2017 That is the gastropod Euconospira. Some examples here: http://www.thefossilforum.com/index.php?/topic/25635-euconospira-king-of-the-pennsylvanian-gastropods/#comment-280669 Euconospira specimens can be stunning. I hope more turn up there. Context is critical. Link to comment Share on other sites More sharing options...
RJB Posted June 27, 2017 Share Posted June 27, 2017 Looks very much like an ammonite to me too, but ive seen some gastropods that look like ammonites. Im going to side with Missourian on this one. RB Link to comment Share on other sites More sharing options...
abyssunder Posted June 27, 2017 Share Posted June 27, 2017 Gastropod. " 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...
KCMOfossil Posted June 27, 2017 Author Share Posted June 27, 2017 1 hour ago, Missourian said: Euconospira Thank you Missourian et al. The pictures in your link give me a nice idea of what I am looking at. If I can get it out of the matrix, I'll post a picture. Russ Link to comment Share on other sites More sharing options...
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