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  1. News flash and request for near-future feedback! After a 12-year(!) hiatus, the Paleontological Research Institution (PRI) is about to reboot American Paleontologist, the old avocational paleontology standby, as a community newsletter. To do what I can to support this effort, I've signed on as a columnist, with a column called "The PaleoCommunity Organizer." It centers the community aspect of our shared avocation and looks at all the ways in which acting as a community can inspire and save avocational paleontology and help it thrive in the 21st century. And, well, it wouldn't be much of a column about community if it were just me talking. A crucial aspect is hearing from y'all, whether that means calling me out on something I missed, or naming a powerful example of something I only just touched on, or reframing the conversation as you see it. The community always knows more than I do. So, community, bring your feedback here to The Fossil Forum, where we can build on each other's ideas and craft a better avocational paleontology world for all of us. Action item: Look out for a followup post here on March 31, 2024, when American Paleontologist's first newsletter drops. That's when I'll ask y'all to get the discussion rolling on my column's first entry: "How Fossil Community Got Lost—and How We Get It Back." Stay tuned.
  2. JurassicMeasures

    Fossil Sites in Western PA?

    Greetings, I’ve recently gotten back into prospecting fossils and I’m looking for some suggestions on sites to visit in western Pennsylvania. I frequently visit Ambridge PA to find fern and Calamite fossils from the Mahoning fm and would like to find more. I also would like to find fossils of early Permian (tetrapods, plants, or invertebrates). I hear that Washington county (south of Pittsburgh) has some great spots and would like to know if it were true. I also would like to show some of my findings from Ambridge as well. Note: I’d like this to be suggested places not just western PA but West Virginia and eastern Ohio as well.
  3. As I continue to explore (see my prior thread Earlier today I visited the Upper Freeport Formation south of East Liverpool. These are sandstones associated with the Upper Freeport coal, so we are at the end of the formation. I have been up here repeatedly over the past year but never explored rocks this old in the area. It was snowing for about two hours this morning but I still spotted some cool fossils. Unfortunately while I saw the Upper Freeport coal, I didn’t have the opportunity to collect in it. Here are two separate medium sized impressions of lycopsid trunks. I then moved further into younger sediments, revisiting where Pteroplax was collected (Romer, 1963). This is a well known site in the literature, reported in most of the Ohio Pennsylvanian age invert reports of the latter half of the 20th century. I’ve been here before, though we mistakenly descended to the base of the cut along the rail line which was frustrating. The circumstances of how Pteroplax was collected are interesting. Look the paper up. That unit it was produced from is no longer evident and completely overgrown and slumped but it’s fine because I was here for the Ames limestone. Everything I collected here was typical of what I have seen of the Ames limestone in eastern Ohio so I have omitted pictures. Afterward I moved on to another section that exposes a larger portion of the Glenshaw Formation (the Ames is the terminal Glenshaw transgression, the Upper Freeport coal is below the Glenshaw’s lowest unit). Here are some Pine Creek (Upper Brush Creek) brachiopods. One is a productid and the other is a part and counter part of a spiriferid (?Neospirifer). In the Cambridge limestone, we found this badly preserved snail. Perhaps with some preparation, it can be identified further. It is fairly beat up. At this locality, the Cambridge is very coarse grained and hard. The snail is not exhibiting the typical preservation qualities of other invertebrate fossils found here. In a younger unit, I found this partial Deltodus tooth as well as a possible actinopterygian scale (I have my doubts but friends are certain). Both are hanging out with broken bellerophontid snail pieces. Tomorrow I will be in the Mercer (Pottsville Group) which is older than anything you’ve seen in these two threads. If I find anything worth sharing, I’ll share! In the future I will be updating this thread for the entire month (and maybe the year) instead of starting new threads.
  4. I have taken a great interest in the Carboniferous period lately, but aside from the more well known 3 (Meganeura, arthropleura, and pulmunoscorpius) finding info on other giant "bugs" seems kind of difficult.
  5. Dean Ruocco

    Xylabion sp.

    From the album: Ordovician

    Brechin Ontario, Bobcaygeon Formation.
  6. Dean Ruocco

    Ceraurus pleurexanthemus

    From the album: Ordovician

    Walcott Rust Quarry..
  7. Dean Ruocco

    Isotelus gigas

    From the album: Ordovician

    Lafamilia Quarry Trenton Group Found spring 2023.
  8. Dean Ruocco

    Gravicalymene magnotuberculata

    From the album: Ordovician

    Lafamilia Quarry Trenton group. Found spring 2023.
  9. Dean Ruocco

    Pseudogygites

    From the album: Ordovician

    Pseudogygites from Ontario, Canada.
  10. Dean Ruocco

    Isotelus mafrizae

    From the album: Ordovician

    Brechen Ontario, Bobcaygeon Formation.
  11. Dean Ruocco

    Flexicalymene meeki

    From the album: Ordovician

    Mount orab, Ohio.
  12. Dean Ruocco

    Ceraurus plattinensis

    From the album: Ordovician

    Ceraurus plattinensis from Ontario, Canada.
  13. Greetings from Oberwil, Switzerland. I'm a new member on thefossilforum.com, but I've been collecting fossils from roadside stops and occasional dedicated outings for nearly 30 years. I'm a chemist by training - I fell in love with making new medicines, and have stuck with it. I find it mind-boggling to relate to the age of the fossils I'm holding...life is far more ancient, far more mysterious, far more marvellous than our imagination can comprehend. I've learned to respect life deeply...this planet is the only one where we know it exists, and has existed, for unimaginably long time. I'm in awe. I'll share some pictures from my collection in the coming days, in hopes of finding out more about where they fit into the grand scheme of life. My favorite fossils are Ordovician (Paleozoic), but I've come across some real stumpers from my trip to Madagascar a few years back; those fossils are almost certainly from the late Mesozoic. I'll be asking for advice on them soon. Ah...I'm now a Swiss citizen, but I was born to German (Swabian) parents who had emigrated to southeastern Tennessee in the early 1960's. Switzerland is home to me now. Best regards Mike
  14. Guancho

    Are these Orthoceras?

    Tried to find a place where you can supposedly find carboniferous/devonian fauna. I'm either really bad at prospecting or the site has been destroyed since the last reports (probably both). I ended up finding these on a couple of rocks that had been moved next to a house so I don't know their age. Orthoceras are cited from this locality, so maybe?? Could be funny-looking rocks too
  15. SilurianSalamander

    Trilobite pygidium or brachiopod?

    Each square is one centimeter. What is this mould of? Thank you!
  16. SilurianSalamander

    Agatized/silicified cephalopods?

    Are these cephalopods in chert? They appear to be agatized as well. The first two pictures are from a chunk of chert and agate that I split to find what looks like the chambers of a nautiloid cephalopod. Is this a fossil or just some way silica forms? Thanks so much!
  17. Hello, I found this beauty on a popular auction site and the seller seems to think it's a horseshoe crab. There is no geological information with it and the seller isn't even sure if it's real. I was hoping that someone might be able to identify it. Thanks.
  18. This looks similar to some jawless fish bone I’ve seen. Could this be some? Ordovician, Wisconsin, Dane county, Madison.
  19. Hello everyone! Hope you have all had a good day. I have just finished a long day of work; clearing out my old display case and bookcase, photographing my specimens, carrying my new cabinet and bookcase up from the garage. Now, I am going to post some photographs of Palaeozoic fossils I would like identification of. I will send the other fossil photos later. For any of these I would like the most specific identification possible, as I am creating labels for my fossil display. Sorry if the lighting is poor. If any of you want them, I can take more photos tomorrow. Specimen 1: Calymenid I obtained this Calymenid Trilobite from a museum. I do not know the location, although due to the large volume of commercially available fossils from the country I would suspect Morocco. I initially believed it to be a specimen of Calymene celebra, due to the shape of the cephalon and the bulging eyes, but found out that in Morocco the closely related Felxicalymene is more common. Are there any noticeable distinguishing features between different types of Calymenids one of you or I could identify on the fossil specimen? If anyone has a guide, it would be very helpful. Specimen 2: Goniatite I obtained this Goniatite from a museum. Seeing as the museum described it as coming from the Jurassic, I wanted to double check their identification, as Gonitaites were only present in the Palaeozoic, and after cross-referencing the specimen with online images, I am pretty sure it is a Goniatite. The museum's labels stated the specimen came from Madagascar, but the fossil seems to be most similar to Goniatites from Morocco. What are all of your opinions on the fossil's identity? Specimen 3: Orthocone I do not remember where I obtained this Orthocone from, but I do know it came from Morocco and that I bought it as 'Orthoceras. However, the exact taxonomy of Moroccan Orthocones seem to be in a bit of a mess, as Orthoceras was a wastebasket taxon, and is now considered to only be found in Europe. Different sources have identified Moroccan Orthocones such as this one as 'Arionoceras' or 'Orthocycloceras' (the latter name in particular was used in the 2021 DK Fossil Handbook). Which one would be the more appropriate name? Or is another name more valid? Thank you all for your support! Tomorrow, when I find the time, I will post some Mesozoic and Cenozoic animal fossils, Triassic plant fossils and some fossils I am concerned might be fake.
  20. Misha

    Osteolepis macrolepidotus

    From the album: Misha's Middle Devonian Fossils

    Osteolepis macrolepidotus Sandwick Fish Beds, Orkney Isles, Scotland Purchase
  21. SilurianSalamander

    Blastoid?

    Are these both blastoids? The larger one is about 2 cm across at its widest point and the smaller is about half a cm across. Ordovician, Dane county Madison Wisconsin. Thanks!
  22. Andúril Flame of the West

    Insular Fossil Assemblages

    To preface this post, I want to note that I am not seeking a direct answer to the question that I am about to pose. I simply felt that some members of this forum may have insight on this topic and that it could generate an interesting and informative discussion. For a long while I have been fascinated by the diverse and unique insular faunas that have been uncovered in the fossil record. On a larger scale, unique faunas developed during the Cenozoic on the continents of Australia and South America, which were both isolated continents. Many smaller islands, such as New Zealand and Cyprus, are famous for having had unique examples of insular gigantism and dwarfism during the Pleistocene epoch. Although there are numerous examples from the latter portion of the Cenozoic, insular communities from the Mesozoic and Paleozoic are in far shorter supply. Of course, the discrepancy is likely due to the lower resolution we have as we travel farther back in time rather than a lack of island communities during these eras. Yet one cannot help but wonder what organisms could have evolved on islands during these very different periods of Earth's history. The late Cretaceous island communities of Madagascar and Hateg island have already offered some tantalizing clues as to what strange routes evolution can take in an insular environment. So, I suppose that this is a very roundabout way of asking if any additional island communities are known from the Mesozoic and Paleozoic and what evolutionary patterns members think may have been exhibited on islands during these time periods given the prevailing forms of life at the time. This thought first came to me when I considered the landmass of Pangea. There must have been islands during the latest Paleozoic and early Mesozoic that may have had the opportunity to develop unique faunas throughout the lifespan of the supercontinent. Although we will never have a full picture due to the imperfections of the fossil record, I hope that everyone finds this as interesting to ponder as I have .
  23. I’ve been told these blastoids appear to be Mississippian in age. That surprises me because the rocks in Dane county Wisconsin are late Cambrian - early Ordovician and the nearest Carboniferous rocks are a long ways away. I’ve done some research into the history of the buildings on the UW Madison campus where I find these fossils and they were supposedly quarried only a few miles from where they now lie. I was also told that blastoids didn’t appear until the Carboniferous. From a quick google search I got the impression that, while they massively diversified in the Carboniferous, they first appeared during the Ordovician. I’m just confused and curious as to how old these rocks are. They’re packed full of fossils and I often find tiny fossils that have eroded out of them and fallen to the ground to collect. attatched are the 2 or 3 blastoids and some of the other fossils I’ve found in these rocks. Any help as to what the age could be would be wonderful! also any IDs on some of the other fossils more specific than “gastropod” or “cephalopod” or “crinoid” are also appreciated. Thank you so much! Y’all are great.
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