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  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

Found 494 results

  1. Squashed Mazon Creek Crustacean?

    This is another piece from the Mazon Creek Chowder Flats site, it was shattered into quite a few pieces, but I was able to reassemble it. However, I can't tell what it is. I am certain it is some kind of crustacean, based on the texture and color of the shell and the presence of a long segmented antenna. But it seems to be rather flattened, and I can't make out many other details. There does appear to a segmented piece extending from the top edge of the blob to the edge of the nodule, but I can't make out any clear segments or limbs. The shape is reminiscent of Mamayocaris, perhaps just a poorly preserved one? The only other Essex Fauna crustacean that seems to roughly match the squat shape is the rare Dithyrocaris.
  2. Over the winter I was freezing and thawing nodules found in reclaimed coal mine spoils from the Pennsylvanian Shelburn Formation, Busseron Sandstone from Vigo County Indiana. These contain flora and rare fauna similar to the Braidwood Biota from Mazon Creek. This nodule split off a tiny bit on one end and I set aside for further investigation after a quick glance revealed an interesting pattern. Then I forgot about until I was recently unpacking from a move, and re-examined it under magnification. Unfortunately, the piece that split off the end was lost, so I only have the one side, but it shows a small rectangular patch of texture, about 10 mm wide. The piece preserved shows folds and wrinkles, as well as what looks like a tear in the center, and looking under magnification reveals the entire piece is covered with tiny pebbly bumps. My first assumption would be plant material, but it doesn't match the texture of any of the other plants I have found at this site. A much less likely option would be a patch of skin from some sort of animal or egg casing. I would like to get it under greater magnification and will try to find an expert to look at it, but I wanted to put the best pictures I was able to take here for y'all's thoughts. Thanks!
  3. A near complete, partly enrolled Paladin sp. found a couple of days ago, lying in three pieces in a pile of disintegrating mudstone. Brigantian stage (Mississippian), N.E. England, UK. I spent ages unsuccessfully looking for the missing bit but never mind, it's still the nearest to a whole one I've found for about four years - decent Carboniferous trilobites are generally hard to come by though moulted bits are quite common at the site. This stuff falls apart when wet and another spell of rain would have completely destroyed it. Apart from gluing, no prepping was needed. 1.5cm long
  4. Hi there, I’m currently exploring the region of the cantabrian mountains in Spain south of Villamanin, in the aptly named cantabrian zone, but I’m struggling to identify this small trilobite I found on the las hiruelas road east of La Vid. Granted it’s only a pygidium exposed but I don’t want to risk damaging it for now. From the geological map I know it’s from the Furada/San Pedro formation which spans the Silurian to Devonian boundary but I can’t find any comparable images online. I’m hoping someone on here can help. Thanks for your time L.
  5. A Strange Rhode Island Fern

    I was going through some material from Cory’s Lane, a Carboniferous fossil site in Rhode Island, when I noticed this fern. It didn’t really look like anything else I had and so I came here for some help. I’m very new to identifying fern fossils, so any help is greatly appreciated.
  6. Hi there! Wanted to share links to a mini documentary series created recently by Will Beckett. The series showcases sites, such as Belfast and Point Prim, on PEI that result in spectacular finds, some made very recently, that put this tiny Canadian province on the map. (WARNING: these links take you outside the forums to the external website YouTube) Cheers! - Keenan Episode 1 - An Introduction Episode 2 - The First Islander Episode 3 - Footprints in the Sandstone
  7. Trace fossil of???

    Trilobite or worm trail? Or something else? Found near red river gorge in Kentucky. Size: 5" x 3.5" x .5"
  8. MORE coral help, please

    Also found, Somerset County. Photo #1 and 2 - Interesting structure, coral? #2 is a closer-up view! #3 - We brought back a LOT of this type - Coral? #4 - A Rugose "horn" coral - The other coral to the right - What kind, please? #5 & #6 (closeup) - Is this even a fossil? Or some type of mineral? Found in the same place!!!!
  9. Hey guys. This is a pretty random selection of the Carboniferous fossils that my kids and I have collected. I have a lot at about this quality, and some better ones but we'd rather not sell them if we can help it. I hadn't planned on selling any of them, but life throws you curve balls and here we are. Whoever responds to this, thank you so much.
  10. So yeah as the title says decided to go here the day before my birthday to hunt for some plant fossils was good fun only found the one outcrop...umm yeah and thought I would share it with you guys also good piece of advice if you go here bring consolidate with you and wear wellies.
  11. To the West!

    Due to the current instability of the cliffs, I headed west Sunday. @EMP helped me out with a ton of info, so I knew I could hit a few sites in one day. My dad and I drove to Allegany County and got to Hunting. I messed up the directions so probably didn’t get to the exact site, but I found a few exposures of mid-late Silurian material, probably McKenzie and Tonoloway formations mostly. The yield was a huge amount of ostracods, some brachiopods. My dad saw a strange rock so I climbed some talus and picked it up. Upon closer examination it had not only ostracods, but tentaculitids on it! Think that will be my IFOTM entry. My dad also found a beautiful calcite vug at one of the sites. I saw a bryozoan in one rock but I didn’t pick it up as the rock was too big. No trilobites, but for a few short stops not bad. I encountered some oriskany sandstone near as well, but as those who have hunted in it will know, it’s badly metamorphosed and almost never yields trilobites. After that, I continued to the conemaugh FM, a Carboniferous terrestrial unit. There was a water filled ditch right in front of the outcrop so I had to do some ninja moves over it here and there. The sandstone was mostly barren aside from a few fragments and the shake was too fragile to survive long but nonetheless I made it out with a few nice plant pieces. A day well spent, I returned home, fossils and a few good memories in tow. I haven’t taken many pictures yet, but I will. Here are a few to whet your appetite. Vug and worn ostracods and brachiopods from Tonoloway limestone
  12. Janvier, P. & Lund, R. 1983 – Hardistiella montaniensis from the Lower Carboniferous of Montana with remarks on the affinity of the lampreys. J. Vert. Paleont. 2, 407-413. Janvier, P. & Lund, R. 1986 – A second lamprey from the Lower Carboniferous of Bear Gulch Montana. Geobios 19, 647-652. Robert S. Sansom, Sarah E. Gabbott, and Mark A. Purnell Decay of vertebrate characters in hagfish and lamprey (Cyclostomata) and the implications for the vertebrate fossil record Proc. R. Soc. B. 2011 278 1709 1150-1157
  13. Lycopsids from Donetsk

    I use a common for Lepidodendron, Diaphorodendron, Synchisidendron and some other arborescent lycopods name - Lycopsid. So, big stem fragment of the Lycopsid The middle size stem with two attached branches The leaf cushions shadded from the stem Some close-up samples of the bark Decorticated stem Branche with attached leaves Cone Stigmaria (the root system) inside Bark covered by Microconchida (that's mean underwater time at the sea) And some pictures with great details
  14. Some Lepidophloios from my collection. All from Pennsylvanian, Donetsk Stem fragment with bark area View of Donetsk from the spoil (site with fossils). Halonia tortuisa - halonial peduncle scars Lepidophloios acerosus Apex of the young Lepidophloios stem
  15. are these anything special?

    hi everyone, i’m new here and am needing help identifying some recent finds of mine. any tips or comments are greatly appreciated, thank you!
  16. Rhadinichthys

    From the album Carboniferous animals

    Rhadinichthys sp, UK coal measures.
  17. Mystery Petalodont tooth

    I had a hunt for some shark teeth the other day in the Lower Carboniferous/Mississippian of Scotland and found an interesting Petalodont I havent been able to identify, its very similar in shape to Petalodus acuminatus but has no imbricated basal ridge between the crown and the base and the ornamentation on the crown is also very different from P. acuminatus. Any thoughts on what it could be would be greatly appreciated!
  18. Short hunt in Donetsk

    View of the site Sigillaria Stigmaria Calamites node Calamites goepperty Cordaites leaf and some alive species
  19. L.S., Last Sunday, I found the specimen shown below on a spoil tip in northern France (Westphalian C, Late Carboniferous). The three photographs were made under different lighting conditions, in an attempt to illustrate the small scale characters of the about 8 mm-long fossil. It appears to be an abdomen (opisthosoma), perhaps of a trigonotarbida spider or some other arthropod. However, since 'beasties' are definitely not my strongsuit, I would really appreciate your suggestions and help to get this little one identified properly. Thanks, Tim
  20. No opinion

    Hi everybody! Who can recognize what's that? Carboniferous, probably plant.
  21. Coal Formation and Near-global Glaciation

    Feulner, G., 2017. Formation of most of our coal brought Earth close to global glaciation. Proceedings of the National Academy of Sciences, 114(43), pp. 11333-11337. Abstract: http://www.pnas.org/content/114/43/11333.short https://www.ncbi.nlm.nih.gov/pubmed/29073052 Paper: https://pdfs.semanticscholar.org/0b23/8273be5a2b4f06d7fb1e5932b45f731944be.pdf Yours, Paul H.
  22. This 3" specimen was collected out of the Mazon Creek itself, near the Benson Farm. It was collected around 1998 and filed as Problematica. We are finally starting to identify these specimens. It is our specimen number S00051. At first, we thought it might be a shrimp similar to Kellibrooksia Macrogaster, but there isn't much evidence of the proper segmentation, and no legs.
  23. I’ve been running into some cool fossils at my study site in southeastern Ohio recently and thought I’d share some photos. This is deep in the hills of southeastern Ohio and most fossils I’ve seen in the area are weathered sandstone casts/impressions of Lepidodendron/Sigillaria trunks/bark in stream beds. Interestingly, these fossils seem to be clustered in 20-50 meter stream stretches. Pictures below are from one such stream stretch in the lower lying part of the ravine where some chert and limestone start showing up with the sandstone. I would love any additional information folks can provide on these rocks as many are too worn/indistinct. Also, does chert/flint ever contain fossils? The last picture is of a big chunk of chert (I think) that looked like petrified wood sort of to me. I will get around to posting some other/better ones from this area later! image2 by Andrew Hoffman, on Flickr image3 by Andrew Hoffman, on Flickr image4 by Andrew Hoffman, on Flickr image5 by Andrew Hoffman, on Flickr image6 by Andrew Hoffman, on Flickr image1 by Andrew Hoffman, on Flickr
  24. carboniferous Midcontinent

    Concise & clear.What more do you want? algeidcontin143.pdf About 1,5 Mb
  25. Could use some help on these 0.5cm - 1cm invertebrate(?) conical spines in the well known Salem Limestone, a marine limestone of the American Midcontinent. They appear to be solid calcite but do not quite match up with the shapes of crinoid spines and echinoid spines that I know from the Mississippian. I have looked at umpteen Salem Limestone samples but have seen these spines at only one small locality. Any insights appreciated! but please provide your reasoning or evidence.