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Found 624 results

  1. Pennsylvanian Aged Mystery Fossil

    This is a very odd fossil that I collected from a Pennsylvanian aged black shale site in North Central Illinois. i have been collecting this site for many years and have never found anything like it. The specimen measures approximately 3”. The site primarily consists of a Thylacocephalan type arthropod along with a variety of fish and a few nautiloids. it is very similar to the Mecca Quarry Shale of Indiana. My best guess is that it is some type of nautiloid or possibly a spiral coprolite. Any suggestions would be appreciated.
  2. Found this small (presumably fish) bone fragment last weekend while at my usual Pennsylvanian (Upper Carboniferous) limestone roadcut in northern IL. Not really sure what to make of it. It's small, not even 1cm long. My only guesses were either a partial jaw of some sort, or maybe a small fragment of a spine. Any thoughts? @jdp @Fossildude19 @deutscheben
  3. Carboniferous Trunk

    I collected this specimen at the Buildex Quarry on Highway 59 1 mile south of Ottawa, Franklin County, Kansas, USA, in March of 1970. It was dug up by a bulldozer while I was visiting the quarry one weekend. Stratigraphy: Pennsylvanian System, Virgilian Series, Douglas Group, Stranger Formation, Tonganoxie Sandstone Member, possibly overlaying the Upper Sibley coal. Age wise, is is Phanerozoic, Paleozoic, carboniferous, Upper Pennsylvanian, Gzhelian International. I found Calamites and other specimens at the same location the same day. Some were covered in carbonized material. Would very much appreciate having this identified, along with the reference or literature used to identify it, at least to the genus level if possible. I am preparing my collection for donation, so now must identify all this stuff that I haven't identified before! Thanks!!
  4. Another Mazon Creek ID thread

    I wanted to join the squad of great Mazon ID threads we have had in the last week. These two were found split on my opening day trip to Mazonia-Braidwood/Pit 11. I only found half of the first one. It doesn't look like much, and it may be nothing, but its worth asking! The second one was split, but both halves were present. It is much more clearly something, but I'm not sure what, as there are not any clear features, although it is preserved with good definition and a nice contrasting color.
  5. small CP fern pinnae

    It is found in the same supposedly delta setting, together with plant branches, sphenophyllums, crinoids, and marine and non-marine shells. any idea what it could be? I am just guessing it is fall-off from some fern plant. The finest mark is 1mm.
  6. The Paleontological Society of Austin TX leads field trips once a month (when there's no pandemic going on!). In February, we went to Lake Jacksboro in Jacksboro TX. I had been out there before and had a great time, finding whatever I could find, but going with the PSoA is great because of the wealth of knowledge of the members. Knowing ahead of time what to keep an eye out for makes all the difference between having a good day fossil hunting....and a great day! That and a little bit of luck! It's taken me a while to get everything photo'd and ID'd. So if anything is incorrectly ID'd, please let me know! A small echinoid spine: 1/2 inch A big crinoid Spine: 1 inch A nice sized Nautiloid: and some tiny tiny nautiloids; Coral Lophophyllidium spinosum 1 inch Gastropods Amphiscapha Gastropod Belerophon Pharkidonotus 3/4 inch A cool combo of Gastropods Trepospira and Glabrocingulum 1 inch A nice big Cephalopod Gastropod Euphemites: 1/2 inch Tiny little brachiopods Husteda A different species of Cephalopod: Euloxoceras 1 inch A single Cephalopod segment: Same Pennsylvanian formation, but different locations: Mineral Wells: Coral (Unknown ID- if anyone knows...lemme know!) Floating Crinoids Paragassizocrinus 1/2 inch This is an Ammonite Tainoceras I found on my first trip to Lake Jacksboro. Defintiely my best find: 5 inches
  7. Calamites

    From Mattson(Mississippian) or Fantasque formation(Pennsylvanian) just outside of Fort Laird NWT Canada. these were quick snap shots before i had to jump in helicopter from a fire tower on top of a small mountain. i am guessing based of discription it is Calamites cistii? did my own research so could be way off. From what i have read this is one of the only Carboniferous deposits in the entire region.
  8. Okay, I swear this is my last Pennsylvanian era of Texas ID question. Well, I think it is. For now. SO was taking a picture of the bryzoan on this fossil and noticed these little tiny pod like structures. Are they Foramnifera? Their structure and color is really amazing. Thanks for any help! Measrement is in inches. The pieces in question are around 1/8 inch in size. some on the other side of the rock:
  9. I found two of these little critters at Lake Jacksboro. I thought they were nautiloids based on the little round "hole" but upon photographing them, I can clearly see striations runing the length of the shell, more like a gastropod Euphemites, but the shape is not consistent with Euphemites but more nautiloid. Any help would be appreciated! Scale is in inches. First one: second one : Gastropod Euphemites for comparison:
  10. I was taking pics of my Lake Jacksboro finds and came across what I thought was a regular cephalopod, orthoceras or somesuch, but on closer inspection, it does not have the chambers like all the others. It really looks more like a belemnite, but I am pretty sure those did not exist in the Pennsylvanian era? Correct me if wrong please! I then thought it was an ehinoid spine, but there is a distinct siphuncle opening on the end, (sorry for the pic, was the best I could do). So does anyone know the proper ID for this? Thanks in advance! Measurement is in inches. another small orthocone I found...with obvious chambers
  11. Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to commonly observe the item of interest; paler orange indicates times in earth history to less commonly observe the item of interest. White indicates very little to no practical probability of observing the item of interest. Please keep in mind that the listed indicators are things like “conspicuous horn corals,” purposefully declining to address rare encounters with groups of low preservation potential, low recognizability, etc. Got additions/amendments, especially for the groups mentioned above? Toss them in the comments below! Thank you..... https://docs.google.com/spreadsheets/d/1tVm_u6v573V4NACrdebb_1OsBEAz60dS1m4pCTckgyA
  12. A few days ago after searching our creek for fossil specimens I came across this sticking out of the leaves. It turned out to be larger than I expected, but it was getting dark so without a second thought I hastily yanked it from the ground and ran home with it. I cleaned it up a bit - all smug and pleased with my find. Then that evening I had the good fortune to read Robert Boessenecker’s excellent post about field notes. I’ve always thought fossils were awesome, and have collected them casually since I was little. I never put any real effort into learning more though. In the last few weeks I’ve only just scratched the surface and found myself among you good people because I couldn’t stop wondering what a certain fossil I had found was. You all helped me ID it, and it really started me on this whole fossil thing. Back to the fossil. I slapped myself upside the head and vowed to return to the site the following day. Luckily I knew exactly where it was located and there was the hole from where I had found the fossil so the lesson learned was much less painful than it could have been. 20 inches from the first hole I found this: Then things got interesting... After a few days of careful notes, digging, pictures, and some light prep: In the above picture they are arranged exactly as found. With north straight left of the picture and south straight right. North is also downhill and south is uphill. They were about 7 yards from the creek and I think pieces 1 and 2 were originally exposed by flooding. After some attempts at fitting them together here is the main base: The following picture is what I believe goes on top of the base. However I can’t get it to line up perfectly yet. All the pieces that have fit together fit very well, but since piece 5 was found uphill and behind/south of piece 4 it makes me think pieces 1 and 2 were originally above the base pieces and erosion caused them to be downhill from the buried pieces. Pieces 1, 2, and 5 fit together exactly. 7 could fit on top of 6 but not as perfectly as I can get the others to fit together. A few more detail shots. The only other thing in the excavation that was interesting so far was this specimen which I think may be a piece of Echinoid spine. It was underneath piece 4. I think it may be a species of Favosites, but further research on my part is needed. I’m still working on the stratigraphy of my area. I got lucky because the creek that I found it at is currently about to break its banks and flood the site. Hopefully I’ll be able to find some more pieces of the top section. I know it's a common fossil but I can’t wait to get back out there. I will update as I dig more!
  13. Mazon Creek Insect Wing or Leaf?

    This concretion from the Mazon Creek area Chowder Flats site split earlier this week but I just had a chance to examine it today. It preserves a narrow ~10 mm long veined object, unfortunately with a portion missing from the middle. The shape and venation makes me think of an insect wing, but it could certainly be a partial leaf of some sort instead. I would love to hear thoughts from anyone with more experience. I had to take the pictures through my loupe since it is so small- the first two are of the part and the third is the counterpart.
  14. some more pennsylvanian plant

    Here are more stuff from the pennsylvanian shale near beijing, what calamites, Neuropteris, Cordates are abandant. I have no clue what they might be. No scales are seen.
  15. spores on leave?

    a friend of mine found this in a Pennsylvanian shale near baijing. The leave, of which the width is about 1cm(which could serve as a scale) is not well preserved and possibly of cordaites, which is very common there. We've never seen the grains like this before, of which a wild guess is some aqua-plant's spores. They are not pits as may be taken looking at the second pic. any ideas?
  16. Black Shale things

    Not sure what these are. There was loose shale near where I dig scattered on the ground. It had different things in it than I’m used to seeing. Maybe it was dumped from a different part of the strata, but shouldn’t be much further away. I’m not great with fish parts, are they maybe fish parts? Should I scratch them out or maybe some vinegar? There are a few other pieces that look tooth/horn shaped.
  17. Just another concretion????

    Is this just another concretion? It was listed as Dinosaur Seed Fossil Specimen, Pennsylvanian, found in Illinois. I am suspiciously thinking it's another concretion. Am I right?
  18. Pennsylvanian fertile ferns

    I recently had a split of material collected from Pennsylvanian age spoil piles in Indiana that appears to be a fragmented fertile Fern and it sparked my interest on older finds that I have yet to identify.I found a post from Roby that reminded me of a fossil that I found 7 years ago.Is this an example of Crenulopteris Mazoniana?
  19. I'm piling back in late from a fossil hunt and wanted to get this online. Found in a lower Pennsylvanian formation locally. Typically find cordaites and ferns in this formation. Today, this odd split pair caught my attention. For size reference the small calamite next to the split pair is a little over 5 cm long and 2 cm wide. Although not a great field shot I'm posting it up now in case someone can point me in a solid research direction. Part of me thinks cordaite but the unusual branching features on one side only are quite odd to me. Perhaps some sort of rhizomic structure? I will post a close-up tomorrow when I have access to natural light again. Thanks for any advice or suggestions, Kato
  20. Poteau Library

    Found this oddity while cleaning underbrush at our WPA library in Poteau, OK. The area is Pennsylvanian in age but I’m not sure this isn’t geologic or relic. Any thoughts?
  21. Going through last year's finds I found a few things that I don't recognize. All are from Pennsylvanian marine limestone. The first few all appear to be fish material of some kind. I find plenty of chondrichthyan teeth, but none of these look like any teeth I've seen, although they may be partials. Possibly some kind of bony fish scale? All images were taken under a microscope, no scale cube but they all are about 1/2" at the widest point. #1) #2)
  22. Wister Ok

    Found a couple pretty large pieces today on my property just outside Wister OK. The area is Pennsylvanian and I have found a lot of very nice calamites sp. and other plant related items but am struggling with deciding if these 2 pcs are fossils or cool looking geological, either way I will happily add them to either a collection of rock garden, depending on the outcome. Any help would be appreciated. I didn’t have a tape available so the chapstick tube is the best size reference I have for now.
  23. LARGE Conularia piece

    I found this at Wilson's clay pit in North TX. I didn't know what it was having never seen a conularia, but when I showed it to some of the members of the group I was with (Paleontological Society of Austin), they were amazed by how large it was!
  24. Got to visit one of the Pennsylvanian era sites outside of Brownwood TX with the Paleontological Society of Austin (FIELD TRIP!) and was astounded by the variety of fauna and the COLOR! Rocks in green, burgundy, purple and golds. Consequently, so were the crinoid stems! A rainbow of Crinoids! I was happy to find one little piece of an arm, also. Was hoping to find a bulb, but did not...one of the other field trippers did though! Also, lots of beautiful horn corals, bryzoans, horn corals, a big and a little Belerophon gastropod, big and little brachiopods, some neat crinoid "spikes" and what I think are Echinoid mouthplates? Aristotle's Lantern parts? Confirmation or correction please! My best find of the day was a little hash plate of echinoid spines and tiny tiny plates. I was also happy to find a cidarid plate and spine. Still looking for that whole one!! My other "big find" of the day was a Petalodus shark tooth...sadly, just the root. But it would have been a BIG one! I spent 5 hours hunting and could have easily stayed another 3 but it was a bit of a long drive home. I look forward to going out again! Rainbow crinoids: Echinoid Hash Plate: tiny piece of Crinoid arm Echinoid Mouthplates? Or Crinoid parts? Crinoid Spines: Not sure if this is another crinoid spine or something else? Petalodus tooth Root: Belerophon Gastropods Bryzoans Neospirifer Horn Corals Punctospriferer Brachiopods Fusilids?
  25. Limestone Mystery

    I'm working on my fossil limestone sink and there are a handful of fossils showing up in the polished bowl. Most are horn corals or shells, but this particular one caught my eye. It might just be a shell or something, but I figured I'd let trained eyes give it a shot. It's about 1inch long.
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