Nimravis Posted November 13, 2017 Share Posted November 13, 2017 Today I was going through some drawers and came across this leaf fossil that I acquired from a friend about 20 years ago. It was labeled Elm Leaf Eocene with not location. I am even wondering if this is an Elm leaf. Does anyone recognize this Fossil and location? Link to comment Share on other sites More sharing options...
doushantuo Posted November 13, 2017 Share Posted November 13, 2017 botanycenozo No outtakes possible,however:useful!!!! Denk et al/CJES 2 Link to comment Share on other sites More sharing options...
doushantuo Posted November 13, 2017 Share Posted November 13, 2017 usgs(Tania/Wolfe) Link to comment Share on other sites More sharing options...
doushantuo Posted November 13, 2017 Share Posted November 13, 2017 2 Link to comment Share on other sites More sharing options...
doushantuo Posted November 13, 2017 Share Posted November 13, 2017 Link to comment Share on other sites More sharing options...
abyssunder Posted November 13, 2017 Share Posted November 13, 2017 11 hours ago, doushantuo said: botanycenozo No outtakes possible,however:useful!!!! Denk et al/CJES Try this... ulmus2005.pdf 1 " 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...
Wrangellian Posted November 14, 2017 Share Posted November 14, 2017 It looks more like some type of Poplar to me. 2 Link to comment Share on other sites More sharing options...
ashcraft Posted November 14, 2017 Share Posted November 14, 2017 Could be Fort Union formation, which is now classified as paleocene, but was once classified as eocene (I think). Brent Ashcraft 1 ashcraft, brent allen Link to comment Share on other sites More sharing options...
andreas Posted November 14, 2017 Share Posted November 14, 2017 13 hours ago, Wrangellian said: It looks more like some type of Poplar to me. For me too 1 Link to comment Share on other sites More sharing options...
King of Snarge Posted November 16, 2017 Share Posted November 16, 2017 A lot of Eocene leaves out of Douglas Pass, CO. (Green River Formation) but are not shiny like that - could be someone coated it with Butvar or some similar preservative. Link to comment Share on other sites More sharing options...
abyssunder Posted November 16, 2017 Share Posted November 16, 2017 Maybe something similar to Exbucklandia? link 1 " 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...
Nimravis Posted November 16, 2017 Author Share Posted November 16, 2017 4 hours ago, King of Snarge said: A lot of Eocene leaves out of Douglas Pass, CO. (Green River Formation) but are not shiny like that - could be someone coated it with Butvar or some similar preservative. It is coated with something, but not by me. Link to comment Share on other sites More sharing options...
piranha Posted November 16, 2017 Share Posted November 16, 2017 The leaf matches well with material from the Paleocene Fort Union Formation of Glendive, Montana. The protective coating is also reminiscent on many of these specimens I have seen over the years. Trochodendroides genetrix Manchester 2014 is the new combination for numerous morphotypes previously classified as Cercidiphyllum arcticum Brown 1962. Manchester, S.R. (2014)Revisions to Roland Brown's North American Paleocene flora. Sborník Národního muzea v Praze - Řada B, 70(3-4):153-210 PDF LINK Quote "Brown’s concept also included leaves of Zizyphoides flabellum" figures from: Brown, R.W. (1962) Paleocene flora of the Rocky Mountains and Great Plains. United States Geological Survey Professional Paper, 375:1-119 PDF LINK 2 Link to comment Share on other sites More sharing options...
KimTexan Posted November 17, 2017 Share Posted November 17, 2017 This may be a silly question, but is the leaf itself preserved or is that an imprint? In the summer of 1980 I found similar leaves in Idaho. They were in an embankment/road cut layered between layers of what appeared to be ancient volcanic ash several feet thick. They were perfectly and flawlessly preserved intact. They were smaller than that though and were not of any species existent in Idaho when I found them. Link to comment Share on other sites More sharing options...
abyssunder Posted November 17, 2017 Share Posted November 17, 2017 Interestingly, I thought I can see a nice resemblance in these pictures: comparative specimens from here 1 " 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...
piranha Posted November 17, 2017 Share Posted November 17, 2017 Steve Manchester agrees it is: Trochodendroides Q: A friend had this leaf in his collection, unfortunately without a locality label. It looks very similar to Fort Union material. Is it Trochodendroides genetrix? A: Looks good to me as Trochodendroides. I'm not sure about the species, but you might be right. 3 Link to comment Share on other sites More sharing options...
jpc Posted November 17, 2017 Share Posted November 17, 2017 I would go with a direct ID form none other than Steve Manchester. 1 Link to comment Share on other sites More sharing options...
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