RomanK Posted November 4, 2012 Share Posted November 4, 2012 This site brought usually some very detailed bark surfaces. This afternoon I found first time the specimen with separate Lepidodendron leaf cusions overlapped each other. Lepidodendron aculeatum Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
RomanK Posted November 4, 2012 Author Share Posted November 4, 2012 Other find Lepidodendron dichotomum Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
RomanK Posted November 4, 2012 Author Share Posted November 4, 2012 (edited) Lepidophloios - young branch First ID version: Lepidophloios acerosus Linley and Hutton Quote from Thomas Second ID verssion: It might be the Sublepidophloios Sterzel (Hopping 1956), cause has a leaf cusion shape like Lepidodendron... Quote "Sublepidophloios Sterzel - is a genus of lepidodendriod stems that have some intermediate characters between the very much more common general Lepidodendron Sternberg and Lepidophloios Sternberg. Sterzel’s original illustrations show that the leaf cushions his new species Lepidophloios hahenbachensis have the overall elongated shape of Lepidodendron but that their central portions, bearing the leaf scars, bulge outwardly and downwardly as in Lepidophloios. After re-examining Sterzel’s illustrations and a number of specimens we are confident that Sublepidophloios is a discrete genus. Some of these specimens are adpressions while others are three dimensionally in clay ironstone giving a clear picture of their leaf cushions as they must have appeared in life. Although this genus is intermediate in characters between Lepidodendron and Lepidophloios we make no suggestion that it is an intermediary stage in an evolutionary sequence from Lepidodendron to Lepidophloios. Indeed, it is more likely that it is not". B.A. Thomas.and Y. Tenchov - A new look at Sublepidophloios Sterzel Edited November 14, 2012 by RomanK Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
RomanK Posted November 4, 2012 Author Share Posted November 4, 2012 Bark of ... Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
snolly50 Posted November 4, 2012 Share Posted November 4, 2012 Your photos are excellent. Please post a little about the equipment/technique you use in producing them. Human beings, who are almost unique in having the ability to learn from the experience of others, also are remarkable for their apparent disinclination to do so. - Douglas Adams, Last Chance to See Link to comment Share on other sites More sharing options...
RomanK Posted November 4, 2012 Author Share Posted November 4, 2012 (edited) Your photos are excellent. Please post a little about the equipment/technique you use in producing them. Hi snolly50! Thank you for your comment. I use quite simple and old digital camera Kodak C360 in macro mode as a rule for the fossil shoting. Second thing I use the binocular optical microscope to make a close up. For that micro picture I use Nicon coolpix L3 digital camera which is quite simple and cheap as well but has a small objective diameter corresponded to the microscope eyepiece and I just put camera back-to-back to the microscope to take a picture. If you work under the bright sunlight you have no need to improve your picture. For some particular cases you would need the Photoshop or other image editor. That's all. Regards, Roman Edited November 4, 2012 by RomanK Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
Indy Posted November 4, 2012 Share Posted November 4, 2012 KUDOS I have been focused on close up photography for many years. You photography and editing skills are most impressive Flash from the Past (Show Us Your Fossils)MAPS Fossil Show Link to comment Share on other sites More sharing options...
Bullsnake Posted November 4, 2012 Share Posted November 4, 2012 Yes, excellent photograpy, and thank you for sharing your technique. Also, congratulations on your specimen with the overlapping leaf cushions. You certainly know your stuff! That's a really neat picture of the site, too. Steve Link to comment Share on other sites More sharing options...
RomanK Posted November 5, 2012 Author Share Posted November 5, 2012 KUDOS I have been focused on close up photography for many years. You photography and editing skills are most impressive Thank you Indy! Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
RomanK Posted November 5, 2012 Author Share Posted November 5, 2012 Yes, excellent photograpy, and thank you for sharing your technique. Also, congratulations on your specimen with the overlapping leaf cushions. You certainly know your stuff! That's a really neat picture of the site, too. Thank you Steve! Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
RomanK Posted November 5, 2012 Author Share Posted November 5, 2012 Bark of ... Bruno noted the inhomogenueity at this specimen. I added that scar at the picture for possible discussion. Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
Terry Dactyll Posted November 5, 2012 Share Posted November 5, 2012 Roman... Thats a first for me to... Great finds as usual...I have never noticed overlapping leaf cushions like that before... Is this naturally occuring or could it be due to some twisting during compaction of the trunk during the fossilisation process?... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
RomanK Posted November 5, 2012 Author Share Posted November 5, 2012 Roman... Thats a first for me to... Great finds as usual...I have never noticed overlapping leaf cushions like that before... Is this naturally occuring or could it be due to some twisting during compaction of the trunk during the fossilisation process?... Thank you Steve! I guess it was a natural process. As known some Lycopsids can drop their leaf cusions with age (for inst., Diaphorodendron), but there are the interfoliar parichnos at the cusions, so it's not Diaphorodendron and looks like classical L. aculeatum. Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
RomanK Posted November 6, 2012 Author Share Posted November 6, 2012 There is an interesting area at the specimen with "dropped" leaf cusions with odd white inhomogenities (red asterisk). Is there any idea what's that? Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
krimfossil Posted November 19, 2012 Share Posted November 19, 2012 Hi Roman, excellent photography, and thank you very mutch for sharing of your technique. Also congratulation on your specimen with the overlapping leaf cushions. best regards Ronald Link to comment Share on other sites More sharing options...
RomanK Posted November 19, 2012 Author Share Posted November 19, 2012 Hi Roman, excellent photography, and thank you very mutch for sharing of your technique. Also congratulation on your specimen with the overlapping leaf cushions. best regards Ronald Thank you Ronald! Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
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