Ruger9a Posted February 23, 2020 Share Posted February 23, 2020 Good evening folks. I have an unidentified fossil plant from Yunnan (suspect), China and is lacking any additional information. The plant leaf/stem section is 30mm wide x 35mm tall. Hoping someone in TFF knows what it is. 1 Link to comment Share on other sites More sharing options...
Ludwigia Posted February 23, 2020 Share Posted February 23, 2020 @paleoflor @Plantguy Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
piranha Posted February 23, 2020 Share Posted February 23, 2020 It looks like a Mesozoic bennettitalean. Perhaps Pterophyllum or something similar. The attached figures are: Pterophyllum pinnatifidum Moisan, P., Voigt, S., Pott, C., Buchwitz, M., Schneider, J.W., Kerp, H., 2011 Cycadalean and Bennettitalean Foliage from the Triassic Madygen Lagerstätte (SW Kyrgyzstan, Central Asia). Review of Palaeobotany and Palynology, 164(1-2):93-108 3 Link to comment Share on other sites More sharing options...
Ruger9a Posted February 24, 2020 Author Share Posted February 24, 2020 Thanks piranha! I've been researching both, but so far the Pterophyllum pinnatifidum looks most like my fossil. My eyes are beginning to cross looking all photos and references. I've printed several articles to read tonight. Link to comment Share on other sites More sharing options...
piranha Posted February 24, 2020 Share Posted February 24, 2020 Another similar species: Pterophyllum schenki 2 Link to comment Share on other sites More sharing options...
Ruger9a Posted February 24, 2020 Author Share Posted February 24, 2020 Wow piranha, I did a lot of reading last night on bennettitalean, Pterophyllum pinnatifidum and schenki. I got wrapped around the axle a bit when I came across Anomozamites nilssonii. It intrigued me at first because of the rectangular leaflet configuration (similar to Pterophyllum pinnatifidum and schenki). But, then I noticed the spacing between the leaflets is more pronounced and not as densely populated as pinnatifidum or schenki. In conclusion, I believe your analysis is right on the money, as usual. Thank you!!! Unless paleoflor or plantguy chime in with additional information I will label this specimen as "Bennettitalean seed plant, Pterophyllum pinnatifidum or schenki, Triassic-Cretaceous, Jehol Biota, China. Does this sound correct? Suggestions? Link to comment Share on other sites More sharing options...
piranha Posted February 24, 2020 Share Posted February 24, 2020 I would label it conservatively in pencil cf. Pterophyllum sp. @paleoflor Link to comment Share on other sites More sharing options...
paleoflor Posted February 24, 2020 Share Posted February 24, 2020 Distinguishing between Pteridophyllum and Anomozamites is difficult, as this probably requires study of epidermal features. 2 Searching for green in the dark grey. Link to comment Share on other sites More sharing options...
piranha Posted February 24, 2020 Share Posted February 24, 2020 34 minutes ago, paleoflor said: Distinguishing between Pteridophyllum and Anomozamites is difficult, as this probably requires study of epidermal features. Is this a typo? Pteridophyllum is not showing up in any list of Mesozoic flora... Link to comment Share on other sites More sharing options...
paleoflor Posted February 24, 2020 Share Posted February 24, 2020 57 minutes ago, piranha said: Is this a typo? Pteridophyllum is not showing up in any list of Mesozoic flora... Yes, a typo indeed... meant Pterophyllum. Searching for green in the dark grey. Link to comment Share on other sites More sharing options...
Ruger9a Posted February 24, 2020 Author Share Posted February 24, 2020 6 hours ago, piranha said: I would label it conservatively in pencil cf. Pterophyllum sp. @paleoflor Will do, how about this: Bennettitalean seed plant, Pterophyllum, Triassic-Cretaceous, Jehol Biota, China? 1 Link to comment Share on other sites More sharing options...
Ruger9a Posted February 24, 2020 Author Share Posted February 24, 2020 3 hours ago, paleoflor said: Distinguishing between Pteridophyllum and Anomozamites is difficult, as this probably requires study of epidermal features. Thanks paleoflor. I would love to know the specific species, but, I can easily live with Pterophyllum - which is much better than unidentified!! Yes.. Link to comment Share on other sites More sharing options...
piranha Posted February 25, 2020 Share Posted February 25, 2020 2 hours ago, Ruger9a said: Will do, how about this: Bennettitalean seed plant, Pterophyllum, Triassic-Cretaceous, Jehol Biota, China? Jehol is certainly an interesting last minute clue. Perhaps the ID of the mystery bennettitalean is solved: Tyrmia acrodonta Wu 1999 figure from: Chang, M., Chen, P., Wang, Y., Wang, Y., Miao, D. 2003 The Jehol Biota: The Emergence of Feathered Dinosaurs, Beaked Birds and Flowering Plants. Shanghai Scientific & Technical Publishers, 208 pp. Wu, S.Q. 1999. A Preliminary Study of the Jehol Flora from Western Liaoning. Palaeoworld, 11:7:37 2 Link to comment Share on other sites More sharing options...
Ruger9a Posted February 25, 2020 Author Share Posted February 25, 2020 Wow, this photo looks exactly like my specimen! I tried to review the reference, but I have to be a member and it cost $39.95 :-( Couldn't find anything else on Tyrmia acrodonta. That's amazing, thanks again. So, should I change the ID to Bennettitalean seed plant, Tyrmia acrodonta, Triassic-Cretaceous, Jehol Biota, China? Link to comment Share on other sites More sharing options...
piranha Posted February 25, 2020 Share Posted February 25, 2020 1 minute ago, Ruger9a said: Wow, this photo looks exactly like my specimen! I tried to review the reference, but I have to be a member and it cost $39.95 :-( Couldn't find anything else on Tyrmia acrodonta. That's amazing, thanks again. So, should I change the ID to Bennettitalean seed plant, Tyrmia acrodonta, Triassic-Cretaceous, Jehol Biota, China? I would label it: Lower Cretaceous, Jehol Group, Yixian Formation Link to comment Share on other sites More sharing options...
Ruger9a Posted February 25, 2020 Author Share Posted February 25, 2020 I want to make sure I understand, so is this what you recommend: Bennettitalean seed plant, Tyrmia acrodonta, Lower Cretaceous, Jehol Group, Yixian Formation, China? Link to comment Share on other sites More sharing options...
piranha Posted February 25, 2020 Share Posted February 25, 2020 1 Link to comment Share on other sites More sharing options...
piranha Posted February 25, 2020 Share Posted February 25, 2020 Here is a printable hi-res image of the original figures and description of: Tyrmia acrodonta Wu, S.Q. 1999. A Preliminary Study of the Jehol Flora from Western Liaoning. Palaeoworld, 11:7:37 3 Link to comment Share on other sites More sharing options...
Ruger9a Posted February 26, 2020 Author Share Posted February 26, 2020 Wow that's fantastic. No doubt about the identification. It's printing right now to become part of my documentation package. Thanks again! Link to comment Share on other sites More sharing options...
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