Jag528 Posted January 13, 2017 Share Posted January 13, 2017 I've been hanging on to this fossil for years, I recently pulled it out of the bucket it was in and was curious to know if anyone on here could tell me more about it. It's approximately 3 inches in diameter. It was found in a creek bed in south central Missouri. Any advice would be appreciated! Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 13, 2017 Share Posted January 13, 2017 Welcome to the Forum. Can we get a top, bottom and opposite side view of the item? Regards, Picture, cropped and brightened. Tim - VETERAN SHALE SPLITTER VFOTM - APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Jag528 Posted January 13, 2017 Author Share Posted January 13, 2017 Top and bottom Link to comment Share on other sites More sharing options...
Jag528 Posted January 13, 2017 Author Share Posted January 13, 2017 Opposite Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 14, 2017 Share Posted January 14, 2017 Thanks for the extra pictures. Hmm. I'm getting a geologic vibe on this one. The rock looks like Chert. Not sure about the processes at play here, but I would have to say eroded chert/limestone nodule. Let's wait and see what some others have to say. Regards, Tim - VETERAN SHALE SPLITTER VFOTM - APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
abyssunder Posted January 14, 2017 Share Posted January 14, 2017 I don't know the geological age, but looks like a basal fragment of a crinoid anchoring system, with the attachment area to the missing column in the upper part, as shown in the first picture. " 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...
Jag528 Posted January 14, 2017 Author Share Posted January 14, 2017 Interesting, I'll have to do some research to understand more about it. I definitely have a lot to learn about geology. I do know there is quite a bit of chert in that area if that helps. I'm sure you're familiar with Missouri cannonballs which are very common here. Link to comment Share on other sites More sharing options...
ashcraft Posted January 14, 2017 Share Posted January 14, 2017 Crinoid anchor point is a possibility. Another thought is a stromatoporoid. Brent Ashcraft ashcraft, brent allen Link to comment Share on other sites More sharing options...
abyssunder Posted January 14, 2017 Share Posted January 14, 2017 I don't exclude that, but, there are consecutive layers in the 'hole', with radiating regular pattern like the crenulae in crinoid columnals in transverse view. Could be hardly eroded. I thought, in your specimen the lumen in partially eroded out, making visible the interior part of the columnals. Try to make a consensus with these images: Could be stromatoporoid encrusting crinoid, but the pillars of the structure necessitating this are not quite visible, also, I think, that in the ecrustation process the stromatoporoid might finally cover completely the encrusted 'base', whatever could be that. " 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...
Jag528 Posted January 14, 2017 Author Share Posted January 14, 2017 Thank you everyone for your help! I do have one more you might be able to help with, this one was from a river bank in the same area. Looks like a carbon print of something. Link to comment Share on other sites More sharing options...
abyssunder Posted January 14, 2017 Share Posted January 14, 2017 Those are weathered crinoid pluricolumnals (partial columns) in longitudinal and oblique section, embedded in the matrix, similar to this one: " 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...
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