bigred97 Posted May 17, 2015 Share Posted May 17, 2015 Hello! I'm a new fossil enthusiast in Milwaukee, Wisconsin. I find Silurian and Devonian crinoids, gastropods, brachiopods, bryozoans, and corals here, mostly on the Lake Michigan shore. I found the attached rock in Door County, Wisconsin, about 3 hours north of here, in the water off of a public beach. It doesn't resemble anything else I've ever found. I am very curious about it so I would be thrilled if anyone can identify it or provide possibilities. The first pic is a little blurry but should give an idea about size. The other two should be good closeups. Thanks! Link to comment Share on other sites More sharing options...
jpc Posted May 17, 2015 Share Posted May 17, 2015 crinoid stemm in longitudiunal section? Link to comment Share on other sites More sharing options...
janislav Posted May 17, 2015 Share Posted May 17, 2015 Agree with jpc. Most likely crinoid columnals. Very unusual presentation. Link to comment Share on other sites More sharing options...
Pumpkinhead Posted May 17, 2015 Share Posted May 17, 2015 It seems slightly split down the middle of the longitudinal section. I wonder how that happened Link to comment Share on other sites More sharing options...
Auspex Posted May 17, 2015 Share Posted May 17, 2015 I too think it is a longitudinal section through a crinoid stem, a rather ornate one. The rock has been worn down to just the right place (rather that fortuitously split). "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Pumpkinhead Posted May 17, 2015 Share Posted May 17, 2015 I meant how the gap between the two sides of the stem is wider on the one side rather than how it was worn down, like on the bottom half of the second picture or the top half of the third one. Sorry for the miscommunication, hope you can see what I mean now Link to comment Share on other sites More sharing options...
Herb Posted May 17, 2015 Share Posted May 17, 2015 differential erosion wear and tear. "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
bigred97 Posted May 18, 2015 Author Share Posted May 18, 2015 Thanks for all the comments! I figured it was likely a crinoid stem but thought I would get some other opinions because it seemed unusual. I was puzzled by the split of the 2 halves like you were, Pumpkinhead, and was thinking it is sort of like a blade of grass that gets split into 2 halves. But if this is a crinoid stem, then it's almost like it has a small tube in the middle and that tube was widened on one end more than the other. In any case, I've found it fun to speculate about! Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now