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Found 1,606 results

  1. Here a partial collected last week from the New Scotland Formation near Port Jervis NY. The list of trilobites found in this formation (in NY) is short. So will say it looks like Dalmanites pleuroptyx. Cheers, Gordon
  2. Trilobite IDs

    I discovered these two rollers in Fayette County , Iowa in the lower Maquoketa, Ordovician. This location is well known for Anatophrus borreaus trilobites. Though the next lower formation changes abruptly to almost 100% Isotelus. Did I find one of each? Rollers make IDs tough on me. Then as long as you "trilo" experts are looking, can you ID the trilo-bits 1,2 and 3 in the next picture? Thanks for helping!!
  3. Waldron Dalmanitids

    I have two Dalmanitid species from the Waldron shale. I know the three on right side are Glyptambon verrucosus. What species is on the left?
  4. Hi, please stare at this trilobite that I just snagged and tell me if you would agree with me that it's real, or if you think it's fake. If the latter, I would appreciate your reasons. Edit: pictures posted properly. Also I ask because I'm still very new at collecting.
  5. Hello everyone! I wanted to share some good news with you all... On Monday, March 16, 2020, I visited "Formosa Reef" in Ontario (Amherstburg Formation, Lower Devonian) for a little fossil hunt. One of the rocks that I found at the site had a trilobite piece that @piranha identified as the hypostome belonging to the trilobite Acanthopyge contusa. When I asked him if he knew of any museum/researcher who might be interested in my specimen, he suggested that I contact the Royal Ontario Museum (ROM), and so I did. First, I emailed David Rudkin, and this is what he said: "Thank you very much for getting in touch and offering to donate your splendid little Acanthopyge hypostome! I've been retired from the ROM for 3 years now and am not permitted to act on behalf of the Invertebrate Palaeontology section, but I am copying these messages to the Curator and Collection Manager with my recommendation to accept your generous offer." "Acanthopyge contusa is indeed a relatively rare component of the Formosa trilobite fauna and the ROM collections do not hold any specimens of the elusive hypostome. Like your contact on The Fossil Forum I've not seen one from Ontario before, so your discovery is quite exciting ... at least for a self-professed trilobite geek such as myself! I'm hoping that my ROM colleagues, Dr Caron and Ms Akrami, will follow my recommendation to accept your offer, but I must leave the final decision in their hands." Just last night, I received two consecutive emails from Maryam Akrami (the current Invertebrate Paleontology Collections Manager at the ROM): "Thank you for sending the images and the information for the trilobite specimen. I am glad to let you know that we will accept your offer of donation. Just want to let you know that the ROM is closed until at least 5th April. If you would like to ship the specimen to us now, I can give you my home address. Once we have the specimen, I will send you a letter acknowledging your generous donation to the ROM." "Following up on my previous email (below), given the current situation and the advise against leaving our homes for non-essential reasons, perhaps it would be a good idea to wait till things return to normal and then ship the specimen to us. I hope that would be ok with yourself." So, once the ROM is up and running again, I'll be handing over my little Acanthopyge contusa hypostome to the ROM! I'll update this thread as soon as the donation has been completed. Here are pictures of the specimen in question: Thanks for reading, everyone! Monica
  6. Hi all, Heres the fourth tome of my fossil collection, and not the least : Trilobites - All collected by me but one. hope you enjoy https://flic.kr/s/aHsmMbxqkV
  7. What is paradoublural?

    What is paradoublural? I don't know because i'm Japanese.Please give me a photo of paradoublural.
  8. Thysanopeltis ID

    I bought this large semi disarticulated thysanopeltis trilobite on a bit of a whim. It arrived today and overall I'm quite pleased. I'm wondering if anyone can help point me to a species or can comment on the level of restoration. I believe the majority of the spines on (its) right hand side of the pydium are carved and painted. There's probably more restoration elsewhere (I expected as much when I bought it) but it's hard to tell. Any other opinions would be appreciated. Unfortunately I don't have any locality information, and as it was labeled as a cornuproetus I doubt the seller knows too much about it either.
  9. Cheirurid ID

    Would this specimen be described as Cheirurus cf. niagarensis, or Ceraurus hydei, Weller? Sugar Run formation.
  10. I am hoping someone can help me with this large unknown trilobite. It was given to me many years ago (late 1980s) by my father, along with some other trilobites and other fossils, as a Christmas gift. He acquired the fossils from a member of the local fossil club (Delaware Valley Paleontological Society) and most were carefully labeled, but this one was missing its label. It is a large, partially enrolled trilobite (15 cm from "nose" to tail if unrolled and 6.5 cm at the widest point); there are small bumps down the middle of the thorax and on the glabellum. It is on a chunk of matrix that lets it stand on its own, and it is a cool display piece. But looking at it closely, it looks...wrong. There's not much detail on the eyes (which seems to be usual in fakes, but can also mean a poorly-prepped real specimen) and overall it just looks wrong, in a way that I can't quite articulate (which again could mean fake, or badly-prepped but real). So, my questions are: 1. Is this, in your opinion, a real trilobite that was badly prepped, or a fake? I would appreciate if you can point out specific features that lead you to your decision. 2. If it is real, can you hazard a guess as to genus/species, and (this is a stretch) where it might come from? The scrape marks on the matrix resemble what I've seen on some Moroccan specimens. However, the other trilobites it was sold with are all from the United States, except for one from Pakistan (!), if that means anything. I think this trilobite resembles Calymene in general shape and size, but I don't know much about trilobites (if that wasn't already obvious) and I could easily be wrong. Thanks in advance for any help you can give. Let me know if additional photos would help- my photography isn't great, but I'll do the best I can.
  11. Hello awesome people! Im finally out of hibernation . I don’t mind fossil hunting in the winter...as long as the snow isn’t deep. It’s been deep lately lol. So the winter hunts have been non existent pretty much. We finally had a good enough thaw and a warm enough weekend to make collecting possible! I went fossil collecting and fossil prospecting this past Saturday and Sunday (March 7th and 8th 2020). It was great getting back out in the field. what a sight!! The snow didn’t bother me I was happy it was well above freezing for once. South central New York tends to get more snow and it hangs around longer it seems ha. Anyway....I did a little exploring and was able to find more Eldredgeops specimens in a few different spots in the upper quarry. It seems if you want to find Eldredgeops you have to go to the upper parts of the quarry. Personally, I’ve only found 1 Eldredgeops cephalon In the bottom 2-3 meters of the quarry. Doesn’t seems to be any specific layers but more of an increased occurrence in the sequence. It would be interesting to try and track the shift in fauna to see if it correlates to a shift in lithology/environment. It’s a very noticeable thing that goniatites occur in the upper levels of the quarry as well. If I remember correct DSR has been described as having a coarsening up sequence in the literature. I bet extra analysis would support that idea. It’s a fun place to collect and get into deep thought about “how the heck did these fossils get here like this?”. It would be fun to try and collect/catalog data from DSR. It’s been a looong while since I made a detailed stratigraphic section. I always label my fossils (location+date) but maybe I need to start including elevation in the quarry....hmmm Anyway.....onto the AWESOME finds from DSR ........plus 2 small finds from a prospecting spot. scale bar used in specimen photos are all centimeter scale
  12. Flexi Trilo Rock and more

    Ordovician Maquoketa Shale SE Minnesota I believe I see a Flexicalymene sp. trilobite and a whole lot more pieces of trilobites. Hence I'm including Caleb's trilo ID rock for reference. I thought if I could get a confirmation or two I would post this hunt as it was a beautiful day in early March to fossil hunt. :-) Well, I guess this will be multiple replies as I don't want to reduce the images where you can't see all the parts. :-)
  13. Hi everyone! New to the forum. I went to the Smithsonian Natural History Museum last summer and purchased this Trilobite in their giftshop. I just realized it may be a fake. Looking at it closer I think I may be correct... can someone please help me out to see if it is real or fake. I would really appreciate it. Being the Smithsonian I thought it would be real. I saw no information tags saying it was not real so Im not sure. Thanks!
  14. Hey all! I'm a huge newbie to actually fossil hunting, though I've been seeking out museums, collections, and building my own personal collection of geological specimens for most of my life. I know that Kentucky is a major state for prehistoric, oceanic fossils and I would love to start hunting & collecting on my own. I've researched for a few months now and as far as I've gotten are some parks/areas near Cincy and Lou. I am not opposed to driving whatsoever, but I am local to the Winchester/Lexington area and I would love to know of some closer sites that I could visit more frequently - especially after heavy rains that may bring up some new specimens. I'd frankly love to find anything from precious stones to any sort of fossil, especially trilobites! I know finding a dinosaur or larger fauna would be a freak miracle at best, so anything fossilized or geological would be incredible! I'm open to any suggestions and out of the way sites; can't wait to see what y'all know of!!
  15. Hello. I saw this trilobite piece on display and was wondering if anyone could tell me more about it. I believe it is fake or heavily composited. Do the trilobites shown come from the same time period? Also, would trilobites and starfish be found together like this? The owner thinks the trilobites are real but have been composited together. Is there any way to verify this? Thanks for any help.
  16. Some trilobites I have from Guanshan Biota: Breviredlichia granulosa Undescribed Redlichia sp. Juvenile R. yunnanensis A pair of unpreped B. granulosa.
  17. Genal spine?

    Came across this small fossil (4mm). It appears to be a ventral genal spine, but I could be wrong. Upper Ordovician. Any idea what species?
  18. I met a teacher recently who showed me this trilobite that she found many years ago in western NY. It's probably Devonian, since other rocks she collected nearby contain apparent Phacops (Eldredgeops) tails. I know it would help a lot to have the head exposed, but before she pays for it to be prepped, she is wondering if anyone can ID it based on the exposed portion. I'm no a trilobite expert, but based on the tail I am wondering if it could be a proeitid such as Pseudodechenella, which I understand is pretty rare. Can anyone confirm that or offer other suggestions? Thanks!
  19. ID on a fossil from Decorah Formation, MN

    I found this plate near in the upper decorah formation Minnesota (Ordovician period limestone). These chunks are frequently littered with trilobite bits and fragments but this lookk a little odd to me. It has a "knob" or bump structur on one side and a gradual bend on the other. Its still partially covered by coral and debris but most of it is exposed. Any ideas?
  20. Two of my weeks formation trilobites, will show more in a few days. Order.: PTYCHOPARIIDA Family.: LLANOASPIDIDAE Gen.: Genevievella, LOCHMAN, 1936 Rare trilobite with a large characteristic spine starting from the 7th axial ring. LINK: http://www.backtothepast.com.mx/ebonino/html/weeks_trilobites_1.html#Genevievella
  21. Trilobite Plate Fragment from MN Decorah?

    I found this chunk of shale poking around a bluff side a while back near Lilydale Park in Minneapolis, MN. The fragment pictured is translucent and is slightly concave, it reminds me of a cheek plate but Im not sure. I'm new at this so I'm pretty clueless, I appreciate any help.
  22. Tiny cephalon ID

    I was going through some rocks I found last year and came across this tiny cephalon I never noticed before. I believe this is Ft Atkinson formation , Ordovician. Cephalon measures only 1mm and is covered in tubercles. I'm wondering because of size would this be considered protaspid? Any help with ID appreciated.
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