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Found 1,654 results

  1. Unknown Maquoketa Trilobite

    Found this while splitting some slabs I brought home from an outcrop of the Maquoketa Group (Upper Ordovician) in Illinois. Started a bit of prep work but figured I'd try to see what I'm dealing with before going any further. My completely uneducated guess would be a lichid pygidium or something of the sort?
  2. More Id please

    Found in grant county SW Wisconsin. Ordovician period... Need help ID
  3. Trilobite Id please

    Found in grant county SW Wisconsin. Ordovician period... not sure what formation is. Need help ID
  4. Lichid

    Hi, need help with this Id, Sugar run formation, IL. Any help appreciated. Measures about 2cm either direction.
  5. Planning trip

    Hey everyone, was thinking about traveling to southwestern Wisconsin for some fossil hunting. I want to learn how to looking for trilobites.... but I have no experience over there. I prefer get together with someone for fun! Let me know. Send me message. Mike P.S. is midwestpaleo.com down for good?
  6. Today I decided to revisit a stream exposure of the Upper Ordovician Maquoketa Group in northern IL. I believe these outcrops are all Brainard Shale, which is the second highest member of the Maquoketa in Northern Illinois. The olive-gray shales exposed at the base of the outcrops are packed with Tentaculites, and the few times I've been here I've always searched for those. Today I wanted to explore more of the creek and see what else I could find. The stream was running pretty fast but wasn't too high, despite all the recent rain. Shale and dolomite outcrop for quite a distance along the stream, although the water is usually too high to get to many of them. I probably won't come back until the water level drops quite a bit so I can wade through, the stream isn't super deep. The stream runs near shops and well-traveled footpaths, so to be respectful I don't hammer here. That makes it a little tough since most rock faces are highly weathered and covered with vegetation, but some nice things can still be found. Water-worn brachiopods are common sights, though rarely worth collecting.
  7. I found this last year in a secret location in Ellisburg, New York. It is a cephalon of the trilobite species Thaleops sp. Even though it is not a complete trilobite, it is still one of my nicer finds. I believe it is from the Trenton Group (Ordovician). I may not be right but I think this is a fairly uncommon trilobite species. I’ve found a lot of Isotelus partials but only one of these.
  8. Hi all. Here s my second round of lockdown fossiling. Went back to my dear brittany trilos. I thought i had none to process left, but somehow i was wrong. Some are recent finds (2 weeks before lockdown), some are more storage finds during reorganisation process. Some hardly need no work, for some others it was a different story. So lets start with a bunch of ectillaenus giganteus. regards
  9. Hello, and thanks to everyone who helped with my last trilobite that I had inquired about. I had a bad feeling about it from the start, so I wasn’t surprised that it turned out to be mostly fake. I have a few more trilobites here that I’ve acquired over the years that I was hoping to get some more opinions on, and if possible maybe get the species identified, as not all of them were identified when I bought them. I'll start with just this one for now (I was going to post more, but I seem to have reached some file limit and can't post any more photos in this thread). It is about six inches outstretched. I am certain that it is at least partially real, as there is some good eye detail, but there is also some very obvious restoration work on one of the eyes, which indicates that at least some portion of the fossil is not original, and I was wondering if anyone can say which parts of this trilobite are original fossil and which are not. Also, there is a split in the rock which divides the fossil in half at about the point where the cephalon meets the thorax (it looks further down from the bottom of the matrix, but from the top that’s where the crack is), so I suspect that this may be a composite. Thank you
  10. Hello, I d like to know if someone would trade unpreped crab nodules. I mostly have french trilobites to trade. Some echinoid also . Some albian minicrabs carapaces. I post those 2 first. Ill post more later . The roller is Colpocoryphe rouaulti, the other one is a small Ectillaenus giganteus. Regards
  11. Trilobite authenticty and help

    Good afternoon fossil hunters, I was wondering if this trilobite is authentic and perhaps any other details would be great! THANKS!
  12. 4D1E58E6-AB96-4130-958E-AF6ADF716B6D.jpeg

    From the album Fossils of the new Scotland and Kalkberg formations in eastern NY

    Neoprobilium nasutus free cheek from the New Scotland formation.
  13. D2A467A6-9C10-4576-8B4D-C29906A8E1B1.jpeg

    From the album Fossils of the new Scotland and Kalkberg formations in eastern NY

    A Paciphacops logani cephalon from the Kalkberg formation.
  14. B5B37E2C-2144-4C51-B6A6-48EB05CE1609.jpeg

    From the album Fossils of the new Scotland and Kalkberg formations in eastern NY

    A partial Kettneraspis tuberculata cephalon with a partial cheek still attached.
  15. A5D8DCE3-3B1B-48AC-B075-DC1FDC9B7901.jpeg

    From the album Fossils of the new Scotland and Kalkberg formations in eastern NY

    Another Kettneraspis free cheek. This one is complete with the long spine still attached.
  16. DD9775EF-7C1E-44B1-A6EC-AF78FA34D8DF.jpeg

    From the album Fossils of the new Scotland and Kalkberg formations in eastern NY

    Another Synphoroides pleuroptyx pygidium from the Kalkberg formation.
  17. AB51E316-BB71-44CC-B789-F1E071D59EBE.jpeg

    From the album Fossils of the new Scotland and Kalkberg formations in eastern NY

    A partial free cheek of the trilobite Kettneraspis tuberculata
  18. 47C60F04-2B72-4CA9-9804-1D78E2FE56F8.jpeg

    From the album Fossils of the new Scotland and Kalkberg formations in eastern NY

    A partial Synphoroides pleuroptyx pygidium from the New Scotland formation.
  19. EF2B61D4-A014-4DCD-878A-FB39E5B4C2F7.jpeg

    From the album Fossils of the new Scotland and Kalkberg formations in eastern NY

    Tiny Paciphacops logani pygidium from the Kalkberg formation.
  20. About 5 years ago I had a paper published in a few newsletters and a Forum member asked if it was published in it's entirety because it seemed incomplete. Well, I reviewed the issue of the DVPS newsletter and, sure enough, the entire "Results" section was left out. For anyone who cares, here it is in all its glory. https://docs.google.com/document/d/1XWuV6BvSU8tAfmQUDEzZmLiZNijx8JWNo6UOUiBSI1c/edit Tom
  21. Trilobite Genal Spine?

    I was able to get out and hunt a new Ordovician spot today. A full trip report is coming, but I’m too curious about this one to wait. In the field I grabbed this thinking it was a large trilobite genal spine. After getting it home and doing some quick cleaning and research, I am less convinced. I’m not even sure that any trilobite from this time period/formation would have spines this size (still researching). From a quick glance at a Kentucky Geological Map it looks like I was in the Grant Lake Limestone (Upper Ordovician). I’m probably way off base here. Trilobites (and bits) are barely in my wheelhouse. What do you all think? I have outlined the general shape of the whole specimen in the below photo as it is obscured by overlying matrix, and a brach, towards the wider end. It has striations running the length and is flat for the most part, but the inside of the “spine” appears to be more rounded.
  22. Ordovician inverts are not my specialty, and thus I have a few that I would appreciate some help narrowing down the species on. The first three are from the Upper Ordovician Platteville Group (Mifflin Member I think). 1) A large cephalopod section. 2) What I think is a bivalve steinkern. Not sure if a species can be ascertained. 3) A tiny trilo pygidium. 4) This last one is from the Upper Ordovician Maquoketa Group. My guess is Eochonetes? Any thoughts @Tidgy's Dad? Thanks for any help.
  23. Trilobite Id?

    Hi everyone, We recently stumbled across this interesting specimen while combing through some rocks of the Verulam Formation (Upper Ordovician), just north of Manitoulin Island in Ontario. We initially thought trilobite, however we are now unsure, as there are over 30 segments of the thorax and they appear to be curved up towards the cephalon as opposed to down towards the pygidium. Any help is appreciated!
  24. Trilobite pygidium?

    Hi everyone, I am very new to fossil hunting and am hoping to find some trilobites. I am located in along Lake Huron in Ontario, Canada on a rock formation from the middle Devonian period. I broke open a rock on my second trip and found this but I am not positive what it is. I think it could be a fossilized pygidium from a trilobite but i am really just guessing. I have attached to photos of the fossil, if anybody could help me identify it or steer me in the right direction that would be greatly appreciated. Thanks.
  25. Today on a hunt I found on of the most unusual trilobite pygidiums I've ever seen from new york and cannot find anything out there to compare it to. Unfortunately the site is imported material from an unknown quarry upstate so all I do know is that its from the Devonian of New York based on other material found there, unfortunately I cannot attach a formation to this one. Also its also fragile and a very partial piece thats unpreped, I think its a ventral display. This maybe a head scratcher so maybe the trilobite experts here can help weigh in on what this can possibly be.
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