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  1. Collector9658

    Pudoproetus fernglenensis cranidium

    From the album: Mississippian fossils

    A good sized Pudoproetus fernglenensis cranidium.
  2. Collector9658

    Pudoproetus fernglenensis

    From the album: Mississippian fossils

    A rare partial Mississippian trilobite. Unfortunately the specimen was found damaged and is missing most of it's cephalon.
  3. MegaceropsAreCool

    Possibly a Trilobite? Does Anyone Know?

    I forgot were I found this fossil but it is from the US norther half. I think it’s a trilobite but It could be just some strange markings on a rock.
  4. fossil35

    utah help

    Was trying to prep. some trilobites and wasn't sure what a few things where. Still trying to learn more of these things. The first 1 looked bit different from other things seeing and wasn't sure if was maybe a upside down head piece or something else? The 2nd one I found a trilobite but it was upside down. So I tried to prep. from the other side and hit what wasn't sure of. There is a head piece of a trilobite to the side but wasn't sure the rest of it was? #1 #1 #2 upside down trilobite #2 what hit on other side of trilobite (was around the top of where trilobite should be) #2 (different angle)
  5. Hi. Friend of my got this trilobite, but I know these kind are often faked. I have never looked for this type of triobites so I was hoping someone would have more experience with these. Any opinions? Thank you.
  6. Isotelus2883

    Hoppin Hill- A Return

    Yesterday afternoon, I had some time to visit the Hoppin Hill Reservoir, in North Attleboro. At my first trip, apparently the water level was extremely low, as this time it was ~4-6 feet above the previous line. Some apparently extensive outcrops were now covered. In the path before reaching the exposures, I picked up a piece of shale from an outcrop, which contains limonite?-stained trilobite fragments, as well as a possible brachiopods. Pleura of a Strenuella strenua? I found near the end of my first trip, a fragment of drift containing a small trilobite cephalon. That area is now covered by water. However, knowing the character of the rock in which the trilobites are found, and the general area, I fortunately found the source exposure above water. Unfortunately, the rock was somewhat heavily metamorphosed, so most of the rock turned into a sort of quartzite, where I found very few trilobite fragments. Some rock turned greyish-white, probably due to the heat. Although most of the rock was like this, some of it was not metamorphosed. Some rock retained its shaly-limestone form. Shaw (1950) states that when the limestone is weathered, and the calcium carbonate leaches out, the rock is reduced to a soft siltstone that “can be crumbled in the fingers.” This was unfortunately the case for most of the rock. I managed to recover some small amount of material that had not completely weathered away. Here is a single thoracic segment preserved in the metamorphosed material. It appears to be silicified. Some fragments of trilobites were recovered from the soft siltstone. I found that upon drying completely, they become slightly more solid. Thoracic segment and free cheek, probably Strenuella. At the end of the day, I took a block of what seemed to be the fossiliferous layers, to split. I found a partial Strenuella strenua, exhibiting the stouter type, with a shorter anterior “flange.” Also, in that same block, I found this quite nice specimen, though it was very fragile. It has a more prominent “flange,” and the occipital spine is rather well preserved. Also, I prepared the trilobite cranidium from the first trip. I believe it is a Dipharus attleborensis, with a nice palpebral lobe preserved. The specimen was much more stable than the ones found on this trip, so I think the layers probably are much better below the water-line. Here is I think Anstey’s map of the reservoir, showing Shaler’s locality 2, as well as where I found the trilobite fragments. I believe the shale layers are a few meters south to where they are represented. Also, I think Landing’s (1988) revision of the formation is unneeded. He puts the Weymouth and the Hoppin formations into one, and names the lower quartzarenite layers the North Attleboro formation. As I have seen the quartzarenite layers grade into the shales and slates, I think this is unnecessary. Also, the species in the sub-trilobitic layers of Hoppin Hill are found throughout, so I think they do not need a separate name. The Hoppin Formation (with the exception of the unusual “Paradoxides walcotti” ) is a preolenellidian fauna, and the Weymouth at Mill Cove has a distinct Callavia fauna with many olenellids. Shaw suggests that the Mill Cove locality is younger in age. I agree with this conclusion. In fact, the only trilobite present in both layers, is Strenuella strenua. Several papers imply that the Pearl Street (Mill Cove) locality does not conformably overlie the sub-trilobitic layers. Correlations have been made between Mill Cove, and Nahant and Cohasset in the faunas found in the sub-trilobitic layers. I propose the Hoppin stay seperate from the Weymouth Formation, and the sub-trilobitic layers in the Weymouth be given a different name, or perhaps be a seperate member of the formation. This may only be a local thing, and somehow the two faunas were separated in some way and they could be of the same age. This is how I think the Formations are aligned. *Not to scale! Overall, I had a fun trip, though the water level at the reservoir was somewhat high.
  7. I'm a very new fossil hunter. I found this lovely little trilobite head (at least, I'm 99% sure it's a trilobite!) in the area around Arkona, Ontario (Canada) this past summer, which to my knowledge is middle devonian. Problem is, it's only the head. I'm not sure if that's very helpful (I'm not even familiar with where to look for resources on IDing trilobites) so I figured I'd ask here. If not to genus, I'd love to get it narrowed down as far as possible, and I'd also love to know what features support your ID! Trilobites are among my favourite extinct animals, I'd love to be able to ID the ones I find in future. Links to good resources on trilo ID are also appreciated, especially ones focusing on trilos found insouthern Ontario. Scale is a centimeter ruler with millimeters. A view from above: And from the side: Sorry if the formatting is weird, I'm posting from mobile. Let me know if any more information is needed, and I'll do my best to provide it. Thanks, all!
  8. Terminal Stareasaurus

    My grandson's finds

    Ok, grandson found some cool stuff here in eastern North Carolina. I'm pretty sure the tooth is an extinct giant white shark. The other a trilobite.
  9. This was in a box that was labeled trilobites from what was labeled Providence Mt in California. But to me does not look like a trilobite.
  10. Newbie_1971

    help with purchased fossil ID

    This trilobite was sold to me as an elrathia kingii. Which I knew when purchasing it, it was not. Can anyone ID this?
  11. Went out today and found what I believe to be a very small headless isotelus. Also found some flexis, and various other things. Here are a few photos from today.
  12. JamieLynn

    Trilobite NY Devonian

  13. JamieLynn

    Trilobite Spine NY Devonian

  14. JamieLynn

    Trilobite Spine NY Devonian

  15. Newbie_1971

    met another member today

    I had arrived to do some looking around and a truck pulls up and a guy hops out. He starts getting his gear together and I start up a conversation. While talking he tells me that he had yet to find his first full trilobite. So I tell him that they are there to be found, and start telling him what to look for, and we both start searching. I ended up finding the first one. I left it and called him over for him to see it in situ. After inspecting it we were back to looking some more. We find various other fossils, I believe he even found a crinoid calyx, and a small isotelus pygidium. Anyhow a bit later Ihear him say, look at that, and look over and ask if he found one. He had indeed! He had found his first roller! I was so stoked for him! After congratulating him we hunted a bit longer then took off for a spot that he wanted to show me. Not long after arriving at the new location I found a dandy flexi roller, and a bit later an isotelus in matrix, not sure exactly how much is in there but plan on working on it a bit with the dremel at some point to find out. I am hoping that he will add his finds to this thread once he gets home and gets them cleaned up. I had fun, and it was nice to hunt with someone that has the interest that he does, and we plan on doing more hunting together in the future. The highlight of the day was seeing him find his first trilobite! A few photos from today ... I kept a cool hashplate with multiple types of brachiopods, a horn coral, and a bryozoan colony or coral?? I also found two rusophycus together but forgot it in the vehicle....may take photos of them later.
  16. Thomas1982

    Eldredgeops rana

    From the album: Mahantango Formation

    Eldredgeops rana Juniata County, Pennsylvania
  17. In my Secret Santa gift last Christmas from @connorp I received (among other nice items) a very nice little hash plate from the Mifflin Member of the Platteville Formation (U/M Ordovician, Blackriverian, ~453 MY) from SW Wisconsin. The picture below is the plate as it was received and in my 12/20/22 post about getting it I said: “A great hash plate. I already see two or maybe three different trilobite types with a couple of them tantalizingly partially buried and an interesting gastropod that I am not familiar with. I think a little prep work will make this even more spectacular. As an added plus, it represents my first fossils from the state of Wisconsin.” I finally got around to doing the prep I talked about and spent a little time exposing some of the more prominent fossils and giving it a gentle going over with air abrasion to bring out some of the features. I think it looks even better than it already did and I was even more impressed with the wide variety of fossils on the small section of rock. Below is the cleaned up plate: Here is a collage of the plate just turned at different angles to the sunlight in case it helps to bring out any features: There are hundreds of fossil fragments on this one small piece of rock, but I want to highlight the top couple dozen specimens. With the help of some TFF members via previous posts and replies in a couple of ID threads I put out (thanks @Tidgy's Dad, @connorp, @piranha, @minnbuckeye and others), I have identified several trilobites, brachiopods, gastropods, ostracods, bryozoans, and a crinoid and want to show you this wonderful diversity in such a small space. If anyone sees changes to my ID's please feel free to chime in. Some will be very specific ID's and some will be a bit more general. The picture below is the key to where each of the numbered specimens is on the slab (see number in upper left of each specific picture). We will start with the trilobites. Although each is only a partial, there is enough present to get a pretty specific ID on most of them. All are new genera or species in my collection. Here are the brachiopods: Here are a couple of specimens of a really neat gastropod which was new to me. So often it seems Paleozoic gastropods are just internal molds or rather plain forms, but this first one is very nice. Here are a few bryozoans and one very small horn coral. There were several of these small corals, I'm not really sure of the ID, I didn't research them much yet. Just a couple of small crinoid columnals were found. And last but not least are the ostracods. I am used to small ostracods (which some of these are) but there is also this one form that is huge (by ostracod standards) coming in at about a centimeter long. At first I thought they were brachiopod fragments until I looked at them closer. These things are the size of a kidney bean! Note the scale difference between the Eoleperditia and all the others. Most of my ID's are questionable as I was using a reference that is for the immediately overlying Decorah Formation until I can find a listing for the Mifflin Member. OK that is everything for now. I hope you have enjoyed the wonderful diversity of this small slice in time. With a little more investigation, I may yet tease out a few more specimens worthy of an ID. Thanks for looking. Mike
  18. Newbie_1971

    mystery trilobite face

    Found this today, it does not look like a flexicalymene. But I am not sure what it would be. Any ideas?
  19. Newbie_1971

    Is this an isotelus pygidium?

    Found this today after work, believe it is an isotelus pygidium. Is that correct?
  20. Newbie_1971

    could this be a Tricopelta breviceps?

    I was showing a friend at work this photo and noticed that the eyes look large, and the design on the head does not look right for flexicalymene. What are your thoughts of it being a possibility?
  21. Isotelus2883

    Another Trip to Quincy

    I visited the Quincy spot again, still with meagre finds but some were half-decent. I of course found some more disarticulated thoracic segments but they’re not worth posting, I found too many. Agraulid bits? The cranidium is probably a very badly preserved Skehanos quadrangularis. Some Paradoxides harlani bits, the cheek is weird because the genal spine is somewhat stubby. A very nice cranidium, and a nice size too, ~11 cm between the palpebral lobes, 7 cm from the anterior border to the occipital lobe. A pretty large section of thorax, with seven lobes. A little buddy. It was nice, but the rocks are very fragmented so there is almost no chance for a complete specimen.
  22. Kane

    A So-So Trip

    Over a week ago I took advantage of our university's Reading Week break to hop a train east to do some late season digging. Apart from a few surprise finds, it did not quite live up to my expectations. I had to hastily organize it as I had got the dates wrong, assuming Reading Week was the following week (one of my students corrected me). It meant getting the trains and motel all lined up with barely a day to spare. Upon my arrival in Toronto for a layover, someone not all together upstairs thought it would be a wise idea to pick a fight with me. I defused the situation, but it certainly help set the tone for this week-long adventure. On the first day of the dig, I ended up walking about 25km for nothing. On the next day I went back to the spot that had been so productive weeks before, but this time it turned out to be the opposite with two exceptions. Unlike last time when cheirurids were popping out like they were going out of style, not even more than a pygidial spine of one this time. Instead, a pair of crappy Flexis:
  23. Kane

    Arctinurus anticostiensis

    From the album: Trilobites

  24. Frightmares

    Trilobite information?

    So, I will admit, I am severely uneducated when it comes to trilobites, but I’d love to learn more about them — the different species, what’s rare, what’s common, formations they’re found in, etc. I don’t have any in my collection yet, and I’d like to change that. Any recommendations where I could start my learning? Books, articles, papers, anything is appreciated.
  25. trilobites_are_awesome

    Trilobite pygidium from Rockport quarry Alpena.

    I went to Rockport quarry in Michigan several times this year. And found this trilobite. A friend says it looks like Crassiproetus but i am not sure.... Thanks! In advance
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