docdutronc Posted March 12, 2011 Share Posted March 12, 2011 Today I find Calamites cisti Brongniart in compression,this sample is very similar to the Zeiller's plate 1886 . Bruno Link to comment Share on other sites More sharing options...
Auspex Posted March 12, 2011 Share Posted March 12, 2011 Today I find Calamites cisti Brongniart in compression,this sample is very similar to the Zeiller's plate 1886 . Bruno Oooooh It seems to be preserved in three dimensions (slightly flattened)? And, +/- 5cm across; is it free of the matrix at the top end? It appears so! "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
docdutronc Posted March 12, 2011 Share Posted March 12, 2011 I also found a Sigillaria tessellata Brongniart with strobus scars ..... Link to comment Share on other sites More sharing options...
Terry Dactyll Posted March 12, 2011 Share Posted March 12, 2011 Bruno.... Theres a lot of 'texture' preserved on the Sigillaria tessellata ... very nice... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
Terry Dactyll Posted March 13, 2011 Share Posted March 13, 2011 Heres a couple of finds from today.... I think they are Paripteris sp.... the veination on the leafs doesnt look right for Neuropteris or Laveinopteris... This leaf is 40 mm long... Tip leaf... Calamostachys Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
docdutronc Posted March 13, 2011 Share Posted March 13, 2011 (edited) Heres a couple of finds from today.... I think they are Paripteris sp.... the veination on the leafs doesnt look right for Neuropteris or Laveinopteris... This leaf is 40 mm long... Tip leaf... Calamostachys Hi Steve It is not a paripteris fern ,paripteris is completed by two leaves (paripinnates ),on your sample there is a terminal pinnule very broad , lobated , indented ,look these pictures , veination looks very similar to Neuropteris ovata Hoffmann Bruno Edited March 13, 2011 by docdutronc Link to comment Share on other sites More sharing options...
Terry Dactyll Posted March 14, 2011 Share Posted March 14, 2011 Bruno.... Thanks for your help with the ID, yes its very clear from the papers about the tip leaf... Where would we be without fossil forums ... although I dread the day you ever see my collection I'm going to need a gallon of corrector fluid ... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
docdutronc Posted March 14, 2011 Share Posted March 14, 2011 Hi Steve Paleobotany is a science not so simple as it sounds, that's why it fascinates me, I learn new information all the days In France, the presence of N. ovata indicates a level Westphalian D (Professor JP Laveine ), I think the correlation is valid for the UK ! best regards Bruno Link to comment Share on other sites More sharing options...
Terry Dactyll Posted March 15, 2011 Share Posted March 15, 2011 Bruno.... The N. ovata material is from the lower Duckmantian of our area...Modiolaris.... which is Westphalian B in the book I have at the moment... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
Terry Dactyll Posted March 15, 2011 Share Posted March 15, 2011 Bruno... Hans asked a specialist contact regarding the 'weird' nobbly bark and got an ID... ''Definitely not Asolanus. I would call it Pinakodendron. Interestingly I can see two sizes of cell on the surface. I assume that the smaller ones are epidermal and the larger ones cortical.'' Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
docdutronc Posted March 15, 2011 Share Posted March 15, 2011 (edited) ''Hi Steve I think it is a stigmaria with internal structure conserved, the cylinder timber (lignous ) corresponds to the central portion (colorwhite). The part with the radial structure radial is never kept on compression fossil ... congratulations Bruno'' Bruno... I sectioned a piece of the stigmaria with the internal structure preserved and found some cell structure in the dark radial structure when it was polished and magnified...I thought you might like to see it... Have you any idea what this bark preservation is? Steve Here's a Boureau's plate , you can see the cylinder of secondary xylem ( X2),the radial structure of Stigmaria ,this reconstruction is very similar to your photo Steve !!! Pinakodendron in Laveine 1989 best regards Bruno Edited March 15, 2011 by docdutronc Link to comment Share on other sites More sharing options...
docdutronc Posted March 16, 2011 Share Posted March 16, 2011 (edited) Hi Steve my friend Daniel from Belgium sent me this picture Pinakodendron ohmanni Weiss in Deltendre ,who is a very uncommon lycophyte !!! Bruno Edited March 16, 2011 by docdutronc Link to comment Share on other sites More sharing options...
Terry Dactyll Posted March 16, 2011 Share Posted March 16, 2011 Bruno... Many thanks to Daniel for the plate... I think I had better put the specimen in the collection... I'll probably never find another ... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
Terry Dactyll Posted March 20, 2011 Share Posted March 20, 2011 (edited) Heres a few new bits.... The fern looks like Laveinopteris loshii...a nice Cyclopteris, Calamostachys and a Lepidodendron tip.... Edited March 20, 2011 by Terry Dactyll Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
glacialerratic Posted March 21, 2011 Share Posted March 21, 2011 Gorgeous fossils, Terry! Great finds! Link to comment Share on other sites More sharing options...
docdutronc Posted March 27, 2011 Share Posted March 27, 2011 (edited) Hi my friends Today some new finds ,a rachis of Neuropteris (laveineopteris)tenuifolia with some remains Cyclopteris adhering bruno Edited December 28, 2012 by docdutronc Link to comment Share on other sites More sharing options...
docdutronc Posted March 27, 2011 Share Posted March 27, 2011 An uncommon Lycopsid ,Pinakodendron ....... http://forums-naturalistes.forums-actifs.com/t4872-pinakodendron Link to comment Share on other sites More sharing options...
Auspex Posted March 27, 2011 Share Posted March 27, 2011 More uncommon and wonderful material Thanks, Bruno! "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
docdutronc Posted March 27, 2011 Share Posted March 27, 2011 (edited) A lepidodendron bark from Liévin aera Lepidodendron serpentigerum Koening ,in Crookall's book ..... Bruno Edited March 27, 2011 by docdutronc Link to comment Share on other sites More sharing options...
Terry Dactyll Posted March 28, 2011 Share Posted March 28, 2011 Bruno.... Very nice !... Congratulations on the Pinakodendron Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
docdutronc Posted April 2, 2011 Share Posted April 2, 2011 Hi my friends last finds from Liévin aera Artisia approximata Brongniart Bruno Link to comment Share on other sites More sharing options...
docdutronc Posted April 2, 2011 Share Posted April 2, 2011 Sigillaria reniformis Brongniart from Liévin France Bruno Link to comment Share on other sites More sharing options...
docdutronc Posted April 2, 2011 Share Posted April 2, 2011 Asolanus camptotaenia Wood Link to comment Share on other sites More sharing options...
RomanK Posted April 2, 2011 Share Posted April 2, 2011 I've had a play about with the lighting and also used the scope for a couple of closeup photos of the bark structure... When I found it... it was pretty muddy inside and I thought it might possibly have been Spirorbis due to the random ness of the lumps on the wood... but now I'm intrigued what it could possibly be as its from a different area.... Hi Steve and Bruno, just for comparing, that photo from Russian forum with Spirorbis Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
docdutronc Posted April 2, 2011 Share Posted April 2, 2011 Hi Steve and Bruno, just for comparing, that photo from Russian forum with Spirorbis Hi Roman very nice Bruno Link to comment Share on other sites More sharing options...
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