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Showing results for tags 'stigmaria'.
Found 22 results
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Howdy all, I have reason to suspect that this is a heavily crushed stigmaria I found while fossil hunting today. I was in the mammoth cave region of Kentucky in a creek where I found plates of coal up to two feet long as well as this fossil. I also went down into an exposed lake bed of Nolin lake which was down the hill from the site I was at and found several of what I'm guessing are mississippian crinoids.
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- carboniferous
- lepidodendrales
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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.
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- carboniferous
- lepidodendron
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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.
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- carboniferous
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From the album: Fossil Collection: DC Area and Beyond
Stigmaria Centralia, PA Llewellyn Formation Carboniferous (Late Pennsylvanian) -
Carboniferous (Pennsylvanian subperiod) Collecting Day
LoneRanger posted a topic in Fossil Hunting Trips
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.
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- 10
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- calamites
- lepidodendron
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Stigmaria, I believe?
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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)
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I found this about a year ago in a farmers field in central/mid Michigan, US. It is rather light. Not much weight to it. Thanks for any help!
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Central PA USA Found just as you see it lying in the reworked rubble of coal strip mine
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- carboniferous
- lycopod
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I found this on a beach near Monterey Bay. (First image) At first I thought it was a rusted metal piece of something. But then I looked more closely, and I wonder whether it is a stigmaria, possibly from a lycophyte. The second image is a closeup of a portion of the first image. On the other side, I peeled away an overlying layer and exposed 5 more of the possible stigmara. (Third image) They appear somewhat hexagonal, though you may not be able to see it in the image. Finally, the fourth image is a closeup of one of the protrusions on the third image. There appears to be a pattern of tiny divots on it.
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Central Pennsylvania (USA); Pottsville Formation, grey shale.... in situ boulder removed and split at home For starters, it does split but it also kinda breaks into hunks and crumbles a bit. Is that correctly described as "nodular shale"? There are a lot of slender black long things without a great deal of definition, and one piece has these round shapes. I think I'm looking at Stigmaria rootlets and where the rootlets attach to the main root. I'll try to add photos of presumed rootlets later. Would welcome any further enlightment. Thanks!
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- carboniferous
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Hi folks,new member here. I was recently cleaning debris from the ditch beside my driveway after a gullywasher and found this basicly laying on top of the ground. After some googling it looks like I might have a stigmaria. Would like confirmation. I live in Stark County in eastern Ohio.
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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 -
Good Morning Folks, I am sharing some photos of my fossil plant collection. The first photo is a branch from a Stigmaria heimans tree. It's from Texas and (I believe) from Palo Pinto County. It's in sandstone and is from the Carboniferous period. I purchased this specimen over 20 years ago from an estate sale with very little information provided (Fossil from Texas). My research provided the additional information.
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- carboniferous
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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
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Current lockdown restrictions in the UK mean we can’t get to the coast, but we’re lucky enough to live with walking distance of a river with plenty to find. Today was a productive day, we found lots of rugose coral, some stigmaria. Can anyone shed any light on the first specimen (top and bottom in first two pictures,) some kind of stigmaria too? Also, can anyone identify the impressions in the second specimen?
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I saw this in a huge sandstone rock in the Pennsylvanian deposits of Palo Pinto County, Texas. It is either the Mingus or Brazos River Formation where I saw lots of wood preserved. Calamites and stigmaria everywhere but also a brachiopod in a lower layer. It may just be geologic shatter marks but I can't make any sense out of it at all. This is the Strawn Group of the Des Moines Series. The whole photo shows a space about 20 X 30 cm.
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Got excited by some of the recent (and recently revived) threads on Centralia so I decided to take a ride over last weekend to take a look around. The graffiti highway was packed and there were a few ATVs riding around the dirt trails but I had the strip mine to myself for the afternoon with the exception of a couple families exploring the area that stopped by to chat. It was very warm on the exposure, but I look forward to getting back there as it cools down so I can try to find some premium specimens as the white ferns were just as bright as any I previously saw at St Clair. Here are some of the finds:
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I had my first taste of the Carboniferous period. I made the trip to Centralia PA for a look at the fossils there. I went to coal deposit up the road from the cemetery on 2nd street ( pic below ). Centralia was not a "ghost town" not when I was there. There was a lot of people around. Many looked like they where their for the Graffiti Highway and other for some kind of four wheel event across the street from the spot I was at. The Shale was very soft and I had a hard time picking up anything bigger than 2 inches. I pulled away 3 layer but still had the same problem. I don't know if it would be them same if a kept going. Over all the sit was easy to find, and had a good view. With many fossil to pick from.
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- centralia
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I found this 2 years ago and couldn't believe detail on it. This is my best stigmaria root find to date. The root is 10 inches long and 5 inches wide.
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- carboniferous
- pennsylvania
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From the album: Oklahoma Stigmaria
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From the album: Carbondale, PA
Finely parallel-veined leaves of a Cordaites plant alongside the branch or root of a giant Lycopod (aka scale tree or club moss). The latter could grow up to 50 m high! found in Carbondale, PA Lewellyn Formation Pennsylvanian (Upper Carboniferous) period 299-323 myo
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