docdutronc Posted August 1, 2010 Share Posted August 1, 2010 Hi my friends .... This morning I found a nice Sigillaria laevigata Brongniart , as in Zeiller book (plate LXXVII fig 3), this specimen shows intercalation of an additional rib .... best regards Bruno Hi my friends Here is a reconstruction of Sigillaria bark Bruno Link to comment Share on other sites More sharing options...
RomanK Posted August 1, 2010 Share Posted August 1, 2010 Hi my friends Here is a reconstruction of Sigillaria bark Bruno Hi Bruno, nice reconstruction, I've got a couple of specimens with this kind of sigillaria prints Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
docdutronc Posted August 1, 2010 Share Posted August 1, 2010 some pictures 2 and Calamites roots .... best regards Bruno Here is Pinnularia columnaris Artis : Calamites roots ......, a Lepidodendron bark and subcortical bark : Knorria....so different !!!! and a pretty little fern bicolor .... best regards Bruno Link to comment Share on other sites More sharing options...
RomanK Posted August 1, 2010 Share Posted August 1, 2010 Here is Pinnularia columnaris Artis : Calamites roots ......, a Lepidodendron bark and subcortical bark : Knorria....so different !!!! and a pretty little fern bicolor .... best regards Bruno Bruno, what do you think placed under each leaf scar like protuberance (middle pic)? Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
docdutronc Posted August 1, 2010 Share Posted August 1, 2010 Latest finds .... a lepidophloios branche ..... the bark of Sigillaria deutschi Brongniart shows small strobus scars ,they are juvenile and arranged on each side of the ribs , yet they do not distort the ribs ... Best regards Bruno Link to comment Share on other sites More sharing options...
Auspex Posted August 1, 2010 Share Posted August 1, 2010 Latest finds .... a lepidophloios branche ..... the bark of Sigillaria deutschi Brongniart shows small strobus scars ,they are juvenile and arranged on each side of the ribs , yet they do not distort the ribs ... Best regards Bruno Such subtle details...I could never master them! Beautiful preservation "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...
Plantguy Posted August 2, 2010 Author Share Posted August 2, 2010 Here is Pinnularia columnaris Artis : Calamites roots ......, a Lepidodendron bark and subcortical bark : Knorria....so different !!!! and a pretty little fern bicolor .... best regards Bruno Hey Bruno, great unique specimens as always! Thanks for posting! I have another question for you. I have seen Pinnularia the genus used for Calamites roots but I have also seen it used for Alga/Fossil diatoms. I know the botanical folks are constantly revising things as they discover more about fossil plants...Is there any logical explanation for having roots and microscopic diatoms in the same genus? Do you know if they are really related? Regards, Chris Link to comment Share on other sites More sharing options...
docdutronc Posted August 7, 2010 Share Posted August 7, 2010 Hi my friends My latest find ,a group of seeds, some specimens seem connected on an axis, there is the foliage of ferns Neuropterides... Chris ,Pinnularia (calamites roots ) and Pinnularia (diatoma ) are not related ,very curious .... best regards Bruno Link to comment Share on other sites More sharing options...
Auspex Posted August 7, 2010 Share Posted August 7, 2010 My latest find ,a group of seeds, some specimens seem connected on an axis, there is the foliage of ferns Neuropterides... Fossiles magnifique! "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 August 11, 2010 Share Posted August 11, 2010 Hi my friends Latest find ,a new quadripart Mariopteris fern .... Bruno Link to comment Share on other sites More sharing options...
paleoflor Posted August 11, 2010 Share Posted August 11, 2010 Hi my friends Latest find ,a new quadripart Mariopteris fern .... Bruno Really nice! It's always great if you can determine the larger-scale frond architecture! Great find! Ciao! Tim Searching for green in the dark grey. Link to comment Share on other sites More sharing options...
Auspex Posted August 11, 2010 Share Posted August 11, 2010 Excellent find! So rare to have a specimen that shows how all the parts go together "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...
RomanK Posted August 14, 2010 Share Posted August 14, 2010 (edited) This is a Lepidophloios bark split from specimen I found this morning. You can see fern leaf print/imprint next to the bark on the specimen. But on the bark area you can see only negative shape (diamonds have the same shape - look at the parichnos - only prominences). Who can explaine why? Edited August 14, 2010 by RomanK Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
docdutronc Posted August 14, 2010 Share Posted August 14, 2010 Professor Erwin L.Zodrow .Yanaki G.Tenchow & Christopher J. Cleal wrote in 2007 a paper about " The arborescent Linopteris obliqua plant Medullosales ,Pennsylvanian " they spoke about reproductive structures ,seeds : Hexagonocarpus Renault Carpentier 1911 .... I quote : " Documented examples of organically -attached medullosean ovules are extremly rare ,the present discovery being only the second know case from the Sydney Coalfied (Cap Breton ,Canada )...." So I think being in the presence of the third specimen in organic connection, I am not aware of that in France, here is a trifurcated Linopteris rachis with ovule attached to a proximal position, this position is unique among medullosean ferns best regards Bruno Link to comment Share on other sites More sharing options...
Auspex Posted August 14, 2010 Share Posted August 14, 2010 Oh my, what a fossil Congratulations on your amazing find! "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...
Roz Posted August 14, 2010 Share Posted August 14, 2010 It doesn't get much better than that.. Congratulations on that find.. Welcome to the forum! Link to comment Share on other sites More sharing options...
Terry Dactyll Posted August 15, 2010 Share Posted August 15, 2010 Bruno..... Excellent.... its nice to find something rare or unusual.... I have a few bits.... the Alethopteris I think is A. davreuxii ... and a couple of unidentifiable stem bits about 3" diameter....possibly calamites, but no indication of junctions visible... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
RomanK Posted August 15, 2010 Share Posted August 15, 2010 (edited) Bruno..... Excellent.... its nice to find something rare or unusual.... I have a few bits.... the Alethopteris I think is A. davreuxii ... and a couple of unidentifiable stem bits about 3" diameter....possibly calamites, but no indication of junctions visible... Hi Steve, nice Calamites stems (you can see the Calamites node on upper part of left stem fragment). That is an outer Calamites bark I think. Just to compare I'm posting Alethopteris rpints from Russian website (www. ammonit.ru) posted by my friend (Dmitry Shaposhnikov, Eastern Donbass, Russia). Both from concretions. Edited August 15, 2010 by RomanK Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
docdutronc Posted August 22, 2010 Share Posted August 22, 2010 (edited) Hi my friends My latest finds ,a Lepidodendron bark with very elongated leaf cushions , there is no parichnos, height is 6.5 cm wide by 0.7 cm ..... Best regards Bruno I found in the Kidston's collection a very similar bark :Lepidodendron jaraczewskii Zeiller Edited February 21, 2011 by docdutronc Link to comment Share on other sites More sharing options...
docdutronc Posted August 22, 2010 Share Posted August 22, 2010 (edited) a small lepidodendron branch.... Bruno Edited August 26, 2010 by docdutronc Link to comment Share on other sites More sharing options...
Terry Dactyll Posted August 22, 2010 Share Posted August 22, 2010 Bruno.... Great finds as usual.... The lepidodendron branch is very nice... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
Terry Dactyll Posted August 22, 2010 Share Posted August 22, 2010 I'm still on dodgy quality plant at the moment, a rough pecopteris and a seed, but this 3" chunk of Myriacantherpestes was a nice supprise... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
RomanK Posted August 22, 2010 Share Posted August 22, 2010 I'm still on dodgy quality plant at the moment, a rough pecopteris and a seed, but this 3" chunk of Myriacantherpestes was a nice supprise... Hi Steve, congratulations with found Millipede, that is fantastic find, I really envy Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
Plantguy Posted August 24, 2010 Author Share Posted August 24, 2010 Hey Bruno, you've added some fantastic items since I viewed this last...The seed material Linopteris with ovule and Neuropterides is pretty spectacular. So is the Lepidodendron branch. Great finely detailed specimens! Roman, nice Lepidophloios and Russian Alethopteris concretion specimens. Steve, I'm not sure what happened to the photos but I cant see you latest find. A millipede? Nice, I just dumped a bunch of those little guys out of one of my plants last week! The Alethopteris specimens reminded me of a recent addition from Alabama. Calamites and Alethopteris? Blue Creek Basin Carboniferous Coal mine west of Bessemer, Alabama Regards, Chris Link to comment Share on other sites More sharing options...
Terry Dactyll Posted August 25, 2010 Share Posted August 25, 2010 Chris..... I was going through 'my profile' and came across something called 'manage attachments'.... if you ever do the same dont click delete lol, I lost the last page full of photos... here it is.... Myriacantherpestes.... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
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