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Showing results for tags 'pennsylvanian'.
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Any idea what this plant fossil is? It was found in North Attleboro as part of the Rhode Island formation. It’s pennsylvanian in age and just shy of an inch and a half.
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- 1
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- carboniferous
- massachusetts
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This fossil was found in north attleboro, part of the Rhode Island formation, and the large leaf in the center is around an inch and a half.
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This fossil was found in north attleboro, part of the Rhode Island formation and the largest one is 6 inches in length.
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I found this small specimen while splitting some Pennsylvanian black shale today. As usual, I'm not sure what it is. Looks like a jaw to me but I really don't know. It measures about 5mm long. Any thoughts? @jdp @RCFossils @deutscheben
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Went looking for ferns and plants today. Spent my lunch hour splitting shale nearby. This one caught my eye. The ghosted pattern around the stem is interesting. I feel like it’s part of it seeing how symmetrical it is. And ideas? Length of the stem part is 2 1/8” (Don’t have a metric ruler handy) To me, the bottom portion is the base, so the shape is confusing.
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I have found many of these at various Pennsylvanian sites in Texas (Jacksboro, Lake Bridgeport)and initially thought that they could be from an echinoid's Aristotle's lantern. But, I haven't seen anything that looks exactly like them. Anyone have a certain ID? Thanks.
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This concretion came from a Pennsylvanian Shelburn Formation site in Vermilion County, Illinois. The fossils are found scattered throughout concretions in a shale layer and indicate a near-shore marine origin, with the most common fossils being tiny to small bivalves, gastropods, goniatites and inarticulate brachiopods, along with occasional plant material. This one has me puzzled though. The concretions don’t split neatly like those from Mazon Creek, so unless the specimens were already exposed by weathering in the field I just smash them and hope it exposes a fossil. This is the only one that looks like this, showing a jumble of negative impressions of organic shapes, some of which are reminiscent of ribs and vertebrae. I can’t make out anything definite, though, so it may just be a suggestively preserved plant or crinoid, or who knows. The section with impressions is about 20 mm wide. Thanks!
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- 5
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- carboniferous
- illinois
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These fossils were found in Westville, IL (Vermillion County) a long time ago by my great grandfather (the grey/black fossil; he worked in the coal mine), and my dad (the light brown/reddish one; on a slag heap). After reading this Publication Title: Guide to Pennsylvanian fossil plants of Illinois Publication Type: Geoscience Education Series Author: James R. Jennings Year: 1990 and looking at a number of photos for comparison, I am wondering if these are Alethopteris sertii? (other guesses are Neuropteris and Acitheca). At least that is my (un)educated guess after desperately trying to make sense of the Jennings paper. Also, on the first photo within the green box I noticed that the foliage has two different looks to it. Were the individual leaves (?) different or is this a result of the way the plant was fossilized? I appreciate all corrections and additional knowledge/comments on these two fossils. This forum identified a nautiloid I have, and I am so appreciative of the feedback and support you give!
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Location is in Missouri The area is dated to the Pennsylvanian Formation: Muncie Creek Shale I assume this could be some part of a fish, as I have found other parts of them inside a few of the concretions from the Muncie Creek formation such as cartilage, or it could be some sort of crustacean part but I do not know what this one could be.
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So most of what I find is Metacoceras or Pseudorthoceras, two very common cephalopods locally. I've found a few Solenochilus, but they are different enough that I know what I found right away. This specimen was discovered as a body chamber. I thought Metacoceras, because, why not? Anything of this shape usually is. After some moderate prep, I revealed some more body chamber, but not any suture marks. The venter is oddly shaped as well, with a shallow U shape. It might be crushed, so I didn't pay it too much mind. I also discovered that the body chamber is much larger than any Metacoceras specimen I have found to date. In viewing the paper A NAUTILOID CEPHALOPOD FAUNA FROM THE PENNSYLVANIAN WINTERSET LIMESTONE OF JACKSON COUNTY, MISSOURI (full paper), I found plate 5 which features Domatoceras. They are known to exist here, but I've never found anything definitive. Here is the plate from the article: Here is a Metacoceras (CG-0071) on the left, and the specimen in question (CG-0068) on the right. Here is the venter of CG-0068 showing the two ridges marked with arrows. I feel these are similar to the ridges shown in Figure 2 of Plate 5 And that is that. Any cephalopod people have an opinion? I could prep it more, it's just at the labor intensive micro prepping state right now with solid cement like limestone overlaying it. One more photo of it for some additional context:
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- brush creek limestone
- cephalopod
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I found this while splitting some Middle Pennsylvanian black shale (Carbondale Fm) today in Illinois. It certainly looks fishy, but I haven't seen anything like it before. Any ideas?
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- 5
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- carboniferous
- fish
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I found this teeny tiny tooth when I was smashing some matrix from the Pennsylvanian La Salle Limestone. It’s about 2 mm tall and has a shiny tip and more matte “root”. Since this is a marine deposit my assumption would be that this is a fish tooth, but is it possible to identify it any further? Here it is on the matrix: and here is the tooth itself:
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- carboniferous
- fish
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Location is in Missouri The area is dated to the Pennsylvanian Formation: Muncie Creek Shale I was cracking Open some Concretions I found and this Came out of one! Unfortunately not in One piece. I was fortunate to find almost all of the pieces, including the tip, but do not know what adhesive to use Never the less I would like to know what species this is from! I have found various prehistoric fish parts from the rock Pile this has come from, Such as teeth from Eugeneodontida and Cartilage. The tip
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Michelinia is a less common, but widely distributed coral in the Pennsylvanian Naco Formation in north central Arizona. The coral lacks noticeable septa and has tabulae that are often convex upward. Dozens of silicified colonies ranging from less than 1 cm to 25 cm across were found in a several meter square area with several species of brachiopods, horn corals and crinoid stems. Mindat: https://www.mindat.org/taxon-3250564.html
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- arizona
- gila county
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Location is in Missouri The area is dated to the Pennsylvanian most likely Raytown, Wyandotte Limestone Formation At this pile I hunt at there are many concretions, but none exude the blue coloring as they are mostly black and much smaller. I am not 100% sure these are fossils but these are the only weirdly hued fossils I have found there. I have found a few teeth from Eugeneodontida, Horn corals, Crinoids, Brachiopods, Nautiloids and petrified wood from the area. I do not have any measuring tools that are not wood when I took these pictures. I apologize and hope this could be a decent size reference.
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Location is in Missouri The area is dated to the Pennsylvanian most likely Raytown, Wyandotte Limestone Hi I was wondering if anyone was able to identify these teeth I found together at the rock pile I hunted at, the right I believe could be a poorly preserved Petalodus tooth with its root and as for the left I have no idea and could be from a Petalodus if not the same one? I am not sure as I am not an expert at identify odd looking teeth yet. If possible I would also like to know the tooth placement if it is able to be determined. Thank you for taking your time to read this! I have found shards from Petalodus teeth in the area and 1 almost complete specimen, but none look like the two teeth I found below Backside of the right specimen Close up picture of the specimen on the left backside of the specimen on the left I held them on their side so the tip would be more visible and you could see more details
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- holocephali
- missouri
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Difficult to describe fossil in Limestone Concretion From Missouri
Samurai posted a topic in Fossil ID
Location Missouri Found in limestone that was blasted out by construction workers The area is Pennsylvanian on the geological map I have also found prehistoric fish teeth in the area along with Brachiopods, Crinoids, and horn corals.
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Location is in Missouri The area is dated to the Pennsylvanian most likely Raytown, Wyandotte Limestone Found in limestone that was blasted out by construction workers I have also found prehistoric fish teeth in the area (Mostly apart of Holocephali) along with Brachiopods, Crinoids, Nautiloids, horn corals, and unidentified cartilage from a limestone concretion. I darkened the left image and lightened the right image to try and make it more visible or at least the darker details more visible I did not bring measuring tools, here is the closet replacement for it that I could find.
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Not sure if this bone is identifiable whatsoever. It is from the LaSalle Limestone (Late Pennsylvanian) in Illinois. There is not much original bone remaining but there is a decent impression of (at least part of) what is missing. The lack of non-cartilaginous fish from this unit makes me suspect tetrapod (which have been reported), but I'm not sure if this bone can be identified anatomically. Any thoughts are appreciated.
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Looking to trade for Unprepped or Trace/track Fossil material
Paleome posted a topic in Member-to-Member Fossil Trades
I would like to trade Trachydomia spp. snails for any legally-collected rough or trace/track fossils, from any era, any location. Here are updated images of what I have left of Trachydomia spp.. The first three in the front have been lightly coated with a clear acrylic (?). The other image is of Desmostylia tooth fragments (Langhian Miocene) from Sharktooth Hill, near Bakersfield, CA. These were obtained at a local rock and mineral show several years ago. I tried to get these to fit together to make a complete specimen. The only one I could do that with is the third one in the first row.
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Stenopoceras, nautiloid from the Finis Shale of Texas
BobWill posted a topic in General Fossil Discussion
I found my first Stenopoceras sp. from the Finis Shale member of the Graham Formation at Jacksboro Texas. I thought it was an oddly-shaped version of the more common Grypoceratid from there, Domatoceras scuptile until I noticed the concave venter. I went through my drawer of Domatoceras fragments and found another partial one after I studied the differences a little. That one was just part of one side and had nothing of the venter but a part of the apertural margin was showing, something I don't remember seeing before. Both are external casts so no sutures but the faint growth lines are visible. The phragmocone is crushed and I believe the septum is the last one so most of the specimen is the body chamber which is about 67mm across. Those holes sure look like punctures and the shell is mostly gone from the opposite flank. This view shows the crushed phragmocone and the septum for a look at the whorl profile which is taller than the more "squatty" Domatoceras. It was in about 7 pieces and I just now figured out where the last one fit. I hope I got all of it that was still there.
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- 5
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- graham formation
- grypoceratid
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Is this a Pennsylvanian shark crusher plate? Is it worth mining out of the limestone?
Samurai posted a topic in Fossil ID
Location Missouri Found in limestone that was blasted out by construction workers The area is Pennsylvanian on the geological map I have also found prehistoric fish teeth in the area along with Brachiopods, Crinoids, nautiloids and horn corals. I was not a 100% if this was a fossil or just a natural formation in limestone. I only say it could be a Pennsylvanian shark crusher plate but I am not 100% sure Sorry for not having a good size reference, I have very little measuring tools, and did not bring it to the site I found it in, there will be a ruler measurement of the hammer below I was not sure if it was biological in origin but the ridge makes me question, and those could be possible pores at the bottom? In all honesty I do not want to make assumptions XD
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I've had this specimen sitting in my "I'll get to it later" pile since last year. I've learned a lot about Cephalopods the past year, one of them being the differences between Nautiloids and Ammonoids. Upon re-inspection of this yesterday, I noticed the shell lines, but more importantly the suture lines caught my eye. These do exist here, but I would call them pretty rare to find. Not being an expert, I would consider Wellerites or Schistoceras, but these are based on quick comparisons using a Pennsylvanian Cephalopods of Ohio book I have. I started to clean up the rock using an air scribe, but I've only got about 30 minutes into it so far. I need to take much better photos, but the shell exterior is messy like this. You really need to rotate it under light and/or a microscope to see the sutures great. There is so scale in the photo, but it's 20mm from front to back of the inner exposed whorl. The top of the photo is still more shell continuing on another 9mm and I started to expose more suture pattern there. The top of the exposed whorl has some shell material pattern shown in a black color.
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- ammonoid
- brush creek limestone
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These two Pit 11 nodules popped over the past couple weeks. I haven't found anything similar to either in the past, so I'm hoping for a bit of help. #1)
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Location: Missouri Local geological map dictates that the area is Pennsylvanian Found in a rock pile left by construction workers that blasted out the rock. I posted a few of these teeth onto r/FossilID but I have not gotten any good responses to the ones below! So I made an account to show my as of right now unidentified specimen! I have found a few shark teeth in the area, such as Petalodus , and a few teeth that look to be from Eugeneodontida. These are by far my smallest shark teeth, and I was very fortunate to find any!
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