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  1. I have 4 Pennsylvanian stigmaria specimens of which only one was specifically identified as a lepidodendron by the collector. I am hopeful that others might have useful suggestions in terms of better identifying the others. The 1st image is of a Pennsylvanian lepidodendron stigmaria specimen from Kentucky. This is my nicest one because not only is it better identified, it also illustrates rootlets and buttons. Image 2 is of another Pennsylvanian stigmaria from Clintonville, Pennsylvania. This appears to be the most common type of stigmaria that I have seen. Would anyone have suggestion/possibilities that would better characterize this specimen? Images 3 and 4 are a Pennsylvanian stigmaria with a heavily degraded label. Image 4 is a closeup of the specimen in image 3. I was able to decipher parts of the label and it was apparently collected near Middlesboro, Kentucky. The rootlet scars on this specimen are much less three dimensional that the rootlet scars on the specimen in image 2. There may be a comment on the label about the rootlet scars having a spiral character. Would anyone be better able to characterize this specimen? Image 5 is of another Pennsylvanian stigmaria from Kentucky. It has many similarities with the specimen depicted in image 2. I also have one very heavily weathered stigmaria from Oklahoma that is very similar to the ones depicted in images 2 and 5; I didn't think it was worth uploading an image. Comments and suggestions about the others would be appreciated.
  2. It appears to this non-specialist that lepidodendron terminology is up for debate even among those with expertise in the area. I have tried to adhere to nomenclature found both in internet sources and information in the 2nd volume of McLoughin's book on Appalachian Plant Fossils. Comments, suggestions, and corrections would be appreciated. The 1st image is of a lepidodendron stigmaria apparently from the perspective of the inside looking out. Notably this specimen has booth rootlets and some buttons. Given that other internet images of lepidodendron stigmaria do not match either this specimen or other stigmaria in my collection, I do not know how the species was identified. Suggestions from anyone knowledgeable about stigmaria identification would be appreciated. Images 2 and 3 are stem specimens of lepidodendra stems from Kentucky and Pennsylvania. The scales are enjoyable. Image 4 is a lepidophyllum (a branch with leaves); apparently any item associated with lepidodendron leaves is considered a lepidophyllum. Image 5 is of a lepidostrobophyllum specimen listed as a "cone" with the tip missing. Specimens like this are apparently found at the end of branches. As lepidodendra apparently reproduced with spores it is not at all exactly clear about the relationship between the "cone" in image 5 and the lepidostrobus spore specimens found in images 6 and 7. Image 6 is of a single leaf of a lepidostrobus and Image 7 displays the conelike formation found with specimens of this type.
  3. flowntheloop

    Lepidodendron Bark?

    Northeast Alabama. Pottsville Formation. This is embedded in a large boulder (with multiple other fossils) that we dug out of the ground within the past 6 months. I'm not sure yet how to remove or clean it. Not the greatest quality photo (my apologies), but I am assuming this is Lepidodendron bark?
  4. I am a retired PhD environmental interface chemist who is also a lifelong fossil enthusiast after growing up in Cincinnati. I have some carboniferous plant fossils for which I would appreciate suggestions from those more knowledgeable than me. Photo1 is from Mazon Creek, IL. The leaves appear to not have a central rib and are arranged in a spray. The leaf in the upper left is interesting. These leaves are nothing like the lepidostrobus ovatifolius in Photo 2 or the lepidodendron "cone" in Photo 3 (both from Kentucky). They also appear to be too big for sigillarius leaves. Is it likely these are cordaites leaves? Photo 4 is a Pennsylvanian fossil from Kentucky that has sphenophylem leaf on the reverse. Is it a lycopod or possibly a cordaites fossil? Photo 5 is of a fossil collected by a coal miner in Pennsylvania; he though it looked like a tire track. It has no leaf scars and there appears to be a slight rectangular tiling on the fossil. Is this possibly inner bark or sigillarius bark? Photo 6 is from the Carboniferous in Oklahoma. It has a high iron content. Photo 7 demonstrates that it apparently grew in layers ~5 mm thick. One opinion suggests that it is lycopod bark. Any other suggestions. Constructive comments would be greatly appreciated. #1 #2 #3 #4 # 5 # 6 #7
  5. Fullux

    Nolin Lake?

    Howdy all, Here's a fossil of a lepidodendron stigmaria (found in association to other lepidodendron material). It was found in a coal seam in Kentucky according to the seller, and I am curious what part of Kentucky this would be from. Nolin Lake sounds likely to me, but I'm unsure.
  6. Fullux

    Missouri Lepidodendron

    Howdy all, This is a lepidodendrale (Lepidodendron?) stigmaria that my Dad found in Knob Noster, Missouri way back when he was in high school. His memory isn't too straight since he found it so long ago and I'm curious what formation this may be from and if it would even be from Missouri.
  7. This is my obligatory once-yearly post to confirm that I'm still alive and well, and still out there collecting. So, at a site somewhere east of the Mississippi River: First photo shows part of a large Calamites impression surrounded by plant debris in a massive matrix block that was too large to collect (sorry no scale item in photo). The whole Calamites impression was about 4 feet long. Following photos show a partial Lepidodendron root, aka stigmaria, with rootlets branching off: a photo of left and right mirror pieces, then left side piece, right side piece, and underside showing that rootlets appeared on the underside of the matrix blocks as well as top. There were other finds such as Sigillaria and Neuropteris, but no photos of these.
  8. Hi All we have had on the forum some quite out there post in the last few days so I thought I would add a post that is a little more grounded . I know very little about Scale Trees and some may think they are a little dull but to me they are quite striking. The Carboniferous was the heyday for early land plants. Giant lycopods, ferns, and horsetails formed the backbone of the land’s ecosystems. One of the most abundant plants during these times was the lycopsids known as the scale trees. Scale trees collectively make up the extinct genus Lepidodendron order Lepidodendrales. The name “scale tree” stems from the fossilized remains of their bark and roots, which resembles and can be at times mistaken for reptile/dinosaur skin . In fact it resembles more scaly skin than it does anything botanical. I am starting my post with a favourite Lepidodendron specimen give to me last Christmas by Doren. I will show my entire allotment in the coming days. Thanks for looking and I look forward to seeing your specimens and learning more about this subject . Cheers Bobby
  9. How exactly did Lepidodendron split from the main trunk at the top to form the branches? Is It just different species of Lepidodendron that branch differently from the trunk? Reconstructions have Lepidodendron branching like this(circled in yellow) While other reconstructions have it branching in four or five branches like this(circled in yellow)
  10. Went to a site in central PA today and collected some Llewelyn formation ferns and other Carboniferous plants. Second opinions on the following are appreciated! 1, I thought this is an Alethopteris but the leaves look like they can also be some immature Neuropteris with compound leaves with the leaves pressed together. 2. Is this Sigillaria bark? 3. Wasn’t sure if this is Lepidodendron bark. These crosshatched stem-looking prints are quite common at the site 4. is this a Calamite print? 5. I am fairly certain this is Neuropteris but just would like to be sure. That’s all. All and any help is appreciated! Thanks in advance and let me know if scale is needed.
  11. There is a seller that is selling a lepidodendron bulbil, stating that it explicitly isn’t a cone and is very rare. Are lepidodendron bulbils an actual thing? I can’t find anything online
  12. Trying to decide. Do I leave the piece as is or expose the bit under the rock. There are other plant bits to the right of it that I feel adds to the piece overall. With just enough room to maybe not be damaged if prepped. The last two pics are to the right and on the backside.
  13. Tamateur

    Is this a bone?

    Hi,Could anyone help with this?It was found in Scotland close to a large fossilised Lepidodendron tree.Thank you
  14. Bateman, R.M. and DiMichele, W.A., Escaping the voluntary constraints of “tyre-track” taxonomy. Taxon 00 (00), pp. 1–16 Wiley PDF Yours, Paul H.
  15. patrick plesiosaurus

    is this a lepidodendron ??

    I am quite sure this is a tree/gymnosperm Is it a lepidodendron. It was found in the screameston coal member carboniferous, Northumberland England.
  16. historianmichael

    Lepidodendron Branches

    From the album: Llewellyn Formation Plants of Pennsylvania

    Lepidodendron Branches Late Pennsylvanian Llewellyn Formation Centralia, PA
  17. historianmichael

    Lepidodendron Branch

    From the album: Llewellyn Formation Plants of Pennsylvania

    Lepidodendron Branch Late Pennsylvanian Llewellyn Formation Centralia, PA
  18. Hi all Im trying to label the morphological parts of a Lepidodendron stem in thin section for my course. I have found a half decent resource online BUT it is unreadable due to the resolution. I was wondering if anyone was confident enough to clear up the labelling lines for me? pic attached. cheers
  19. I_gotta_rock

    Stigmaria

    From the album: Plants of the Lewellyn Formation

    Root of a Lepidodendron (scale tree) with rootlets radiating out at right angles along both sides. The white powder highlighting the imprint is iron oxide, most likely pyrophyllite, left over from the actual plant. Lewellyn Formation (same formation that runs through St. Claire) Lackawanna County, PA Pennsylvanian age
  20. Many roots of the Lepidodendron have been found here cast in fine grained, very hard sandstone. One specimen of bark has been found that is in a repetitive diamond pattern reminiscent of scales on a tropical palm type tree. Another one off specimen is of the interior trunk or wood of the tree--(presumably). All of these specimens are the same type of sandstone. This is definitely Lepidodendron country as no other fossils have been found here to date. Pics of individual specimens will be gladly posted upon request.
  21. Jurassic Mark

    Can anyone ID this fossil please?

    Hi, I really don't know too much about fossils but I found this on my farm in Co. Laois, Ireland. It was in a wooded area and my farm is about 100 metres above sea level. Thinking it could be a lepidodendron from googling things, however I'm really not sure. Attached are pics of the fossil. Thank you in advance!
  22. I_gotta_rock

    Plant Hash Plate

    From the album: Plants of the Lewellyn Formation

    1) Shrub/vining plant - Spenophyllum majus 2) unidentified seed fern 3) Neuropteris sp. 4) Scale tree- Lepidodendron sp. 5) Seed Fern- Alethopteris sp. 6) Seed Fern- Neuropteris? 7) Shrub/vining plant- Sphenophyllum sp. McIntyre Mt., Ralston, PA Pottstown member, Lewellyn Fm. Carboniferous
  23. Bradley Flynn

    Stigmaria, lepidodendron or rock

    Found this in a washed out ditch. I have someone suggest that this might be a stigmaria, lepidodendron species. Would like to confirm ID. Thanks
  24. I picked up two additional fossils I needed. First one is a Calamites Leaf Tip, needed this to go with all my other Calamite fossils. Second is a Lepidodendron Leaf , I only had one small sample of this so wanted more. this is all Pennsylvanian age
  25. I am looking for confirmation on my IDs of these plant fossils, especially what I think is form genus Lepidophyllum. Buck Mountain No. 5 coal mine, Llewellyn Formation, Upper Pennsylvanian, Pennsylvania, USA. Scale in cm / mm. Lepidodendron sp. Lepidophyllum?
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