CandiM Posted June 26, 2021 Share Posted June 26, 2021 Link to comment Share on other sites More sharing options...
Ludwigia Posted June 26, 2021 Share Posted June 26, 2021 Looks like Sigillaria tree bark. Might help us more if you at least tell us exactly where it was found. 2 3 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
CandiM Posted June 27, 2021 Author Share Posted June 27, 2021 I found it rock hunting in Coggon, Iowa. It's just north of Cedar Rapids. I can post a few more pics. Link to comment Share on other sites More sharing options...
Bobby Rico Posted June 27, 2021 Share Posted June 27, 2021 I also think it is some scale tree bark, Link to comment Share on other sites More sharing options...
Rockwood Posted June 27, 2021 Share Posted June 27, 2021 I'm afraid this is going to shake out as an unusual concretion. Link to comment Share on other sites More sharing options...
Ludwigia Posted June 27, 2021 Share Posted June 27, 2021 According to this, there is some carboniferous exposure around Cedar Rapids, so bark is a possibility. 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Rockwood Posted June 27, 2021 Share Posted June 27, 2021 In context, I would agree. Without, I think it's a stretch. Link to comment Share on other sites More sharing options...
minnbuckeye Posted June 27, 2021 Share Posted June 27, 2021 I hunt in the area and can attest that the vast majority of the available rock is Devonian, so tree bark absent. With that said, there are rare exposures of Carboniferous rock where plant material is found. I have found some in matrix that does not look like this and the plant material found was strands of unidentifiable material. I hope that this IS a piece of scale tree bark for it would be an outstanding find for the location!! Was it found in a ravine as an isolated rock or part of a larger ledge that you extracted it from. If the latter, are other fossils present in that matrix?? If you enjoy fossils' consider joining the Cedar Valley Rocks & Minerals Society and have access to some quarries with wonderful fossils. Mike 3 Link to comment Share on other sites More sharing options...
CandiM Posted June 28, 2021 Author Share Posted June 28, 2021 Thanks, I will do that. And I looked up Sigillaria tree bark and it is quite similar in appearance. I couldn't be for certain tho. And it was found by it's lonesome, well alongside many, many other rocks. Some I believe to be fossils, chalcedony, agates, quartz, etc... But this is the only one I've found of this likeliness. It was on a sand bar next to a creek. I'll post a few other (what I believe to be) fossils that I found in the same spot. To add to it I think I may also have found a few stone tool artifacts in the same spot. Link to comment Share on other sites More sharing options...
Rockwood Posted June 28, 2021 Share Posted June 28, 2021 I think concretion is winning this race so far. A more recognizable plant fossil would really be needed I'm afraid. Link to comment Share on other sites More sharing options...
minnbuckeye Posted June 28, 2021 Share Posted June 28, 2021 Unfortunately, sandbars do not help us ID. It could have been transported from anywhere "upstream". Mike 1 Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted July 1, 2021 Share Posted July 1, 2021 Looks like Sigillaria. Compare to this. 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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