RomanK Posted November 4, 2009 Share Posted November 4, 2009 Who can explain odd circles on the thin calamites branch that I noticed recently? Each branch part has ones (in red rings). Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
Auspex Posted November 4, 2009 Share Posted November 4, 2009 Could it be a type with a branching habit? "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...
Shamalama Posted November 5, 2009 Share Posted November 5, 2009 Can you post a larger closeup of the circles? -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
Guest N.AL.hunter Posted November 5, 2009 Share Posted November 5, 2009 They look like red circles to me... maybe computer generated? Sorry, just had to do it. Link to comment Share on other sites More sharing options...
Plantguy Posted November 5, 2009 Share Posted November 5, 2009 N.AL.hunter. very bad, but I will admit that was the first thing I thought of also...very bad! Shame on both of us. My apologies to you Romank! Anyway... Romank, nice specimen. I concur with Auspex...pretty sure you have an example with branch scars at different nodes along the length of the specimen....see this link which shows multiple branch scars at the same node. Regards, Chris http://www.geocraft.com/WVFossils/Calamite6.html Link to comment Share on other sites More sharing options...
Nicholas Posted November 5, 2009 Share Posted November 5, 2009 Definitely branching scars. Link to comment Share on other sites More sharing options...
flyguy784 Posted November 5, 2009 Share Posted November 5, 2009 (edited) Hey Roman. A better close up of the actual circled item would go a long way. Could be branch scars, but, as far as I know branching on Calamites always occurs at the nodes. At least in all the literature I have on Triassic Equisetales. I would be inclined to think possibly a fungal infection of some sort. Try to get a close up. Edited November 5, 2009 by flyguy784 Link to comment Share on other sites More sharing options...
RomanK Posted November 5, 2009 Author Share Posted November 5, 2009 Maximum resolution I can provide. Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
Auspex Posted November 5, 2009 Share Posted November 5, 2009 This is the best I can do: "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...
flyguy784 Posted November 5, 2009 Share Posted November 5, 2009 I stand corrected. Did a little looking around and did find one species, Equisetites rogersi, again Triassic, that does have branch scars that are not on the nodes. So it's possible. Kind of like comparing apples and oranges though. Triassic vs Carboniferous. I just don't have many images of carboniferous plant material. Take a look at the scars under magnafication. If they're branch scars you should be able to see a distortion in the stem surface where the branches came thru. If not, you should be able to see that the circled objects are merely on the suface (fungus). I'm really curious to find out what they are. Link to comment Share on other sites More sharing options...
Terry Dactyll Posted November 5, 2009 Share Posted November 5, 2009 RomanK..... It looks like chunks of matrix still attached to the stem to me... I know they appear an equal size.....maybe theres a spirobis worm tube underneath that has acted as adhesion for the matrix.... I diesnt seem to look like nodes to me.... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
RomanK Posted November 5, 2009 Author Share Posted November 5, 2009 I stand corrected. Did a little looking around and did find one species, Equisetites rogersi, again Triassic, that does have branch scars that are not on the nodes. So it's possible. Kind of like comparing apples and oranges though. Triassic vs Carboniferous. I just don't have many images of carboniferous plant material. Take a look at the scars under magnafication. If they're branch scars you should be able to see a distortion in the stem surface where the branches came thru. If not, you should be able to see that the circled objects are merely on the suface (fungus). I'm really curious to find out what they are. Thanks to all for help. I agree with version branching. Look at the thicker branch I found among my old specimens, circles arranged near nodes and has a circular spacing. Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
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