William Posted July 26, 2016 Share Posted July 26, 2016 (edited) I think I have this right, but want to be sure. This is a Carboniferous bark and root specimen, correct? Found in SW Indiana. Edited July 26, 2016 by William Link to comment Share on other sites More sharing options...
andyrice11 Posted July 26, 2016 Share Posted July 26, 2016 (edited) Left looks like Stigmaria The one on the right is the bark I'm assuming? Looks a lot like Lepidodendron Edited July 27, 2016 by andyrice11 Link to comment Share on other sites More sharing options...
Strepsodus Posted July 26, 2016 Share Posted July 26, 2016 Hi. I agree with Andy. Daniel Link to comment Share on other sites More sharing options...
andyrice11 Posted July 26, 2016 Share Posted July 26, 2016 I got both of those ID's from my guide to the fossils of Indiana book. Nice pieces by the way! Link to comment Share on other sites More sharing options...
William Posted July 26, 2016 Author Share Posted July 26, 2016 Thanks for the replies. Link to comment Share on other sites More sharing options...
William Posted July 26, 2016 Author Share Posted July 26, 2016 I got both of those ID's from my guide to the fossils of Indiana book. Nice pieces by the way! Thank you, Andy. Link to comment Share on other sites More sharing options...
William Posted July 26, 2016 Author Share Posted July 26, 2016 I got both of those ID's from my guide to the fossils of Indiana book. Nice pieces by the way! I'll have to pick up a copy of that book myself. I didn't realized there was one specific to Indiana. Link to comment Share on other sites More sharing options...
andyrice11 Posted July 26, 2016 Share Posted July 26, 2016 I'll have to pick up a copy of that book myself. I didn't realized there was one specific to Indiana. I purchased it from the IGS online bookstore. It has almost 100 pages of black and white photos! Link to comment Share on other sites More sharing options...
doushantuo Posted July 26, 2016 Share Posted July 26, 2016 And i take it everyone is aware of the connection between Stigmaria and Lepidodendron? Link to comment Share on other sites More sharing options...
Archie Posted July 26, 2016 Share Posted July 26, 2016 They both look like Stigmaria which can be the root of other Lycopsids such as Sigillaria as well as Lepidodendron. Nice finds! 1 Link to comment Share on other sites More sharing options...
CraigHyatt Posted July 26, 2016 Share Posted July 26, 2016 William, you sure are posting a lot of nice stuff. I enjoy seeing your finds. Info: Craig Hyatt, retired software/electrical engineer Experience: Beginner, fossil hunting less than a year Location: Eagle Pass, TX USA on the border with Mexico, hot dry desert Formation: Escondido, Marine, Upper Cretaceous Materials: Sandstone, Mudstone, Shale, Chert, Chalk Typical: Thalassinoides, Sphenodiscus, Exogyra, Inoceramus Reference: http://txfossils.com/Txfossils.html Link to comment Share on other sites More sharing options...
William Posted July 26, 2016 Author Share Posted July 26, 2016 William, you sure are posting a lot of nice stuff. I enjoy seeing your finds. Thank you, Craig. I had a lot of fun looking this past weekend. Can't wait to get out again. Link to comment Share on other sites More sharing options...
Rockwood Posted July 27, 2016 Share Posted July 27, 2016 Left looks like the genus Stigmaria The one on the left is the bark I'm assuming? Looks a lot like Lepidodendron I don't claim to be an expert on this so correct me if this is wrong. I would think the one on the right would be closer to what one would think of as bark. It would be the outer layer of cortex which sloughs off as the plant gets older and young rootlets are abscised. The one on the right looks to be more distal where rootlets were more developed. 1 Link to comment Share on other sites More sharing options...
abyssunder Posted July 27, 2016 Share Posted July 27, 2016 (edited) Considering the two distinct patterns present on the specimens, circular (on the left ) and diamond shaped (on the right ), I would agree that the first is part of a Stigmaria , and the second of a Lepidodendron trunk or stem . http://www.georgesbasement.com/Langford-WilmingtonCoalFlora/Webpage/SketchesofvariouslepidodendronbarkpatternsP27.htm Edited July 27, 2016 by abyssunder " 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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