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  1. This is a work in progress, a kind of "master list" of trilobite species found in Ontario according to the available literature. In some cases, stratigraphy and taxonomic names have been modernized. Correlations are added where it is expected that species found in equivalent strata could be found in Ontario rocks. I have not included trilobites from the Hudson/James Bay area as there are a number of species there that still are in need of formal description. There are also a number of uncertainties that require more literature support before they are included here. I'll update this as more res
  2. Oxytropidoceras

    Do Trilobites Bite?

    They Put the Bite in Trilobite By Cara Giaimo, New York times, Jan. 30, 2021 Do Trilobites Bite? By Allison Kubo Hutchison , Buzz Blog, Friday, February 12, 2021 Ancient marvels: the first shell-crushing predators ground up their prey between their legs By Katrina Kenny. The Coversation, January 26, 2021 the paper is: Bicknell, R.D., Holmes, J.D., Edgecombe, G.D., Losso, S.R., Ortega-Hernández, J., Wroe, S. and Paterson, J.R., 2021. Biomechanical analyses of Cambrian euarthropod limbs reveal their effectiveness in mas
  3. Du, K.S., Ortega-Hernández, J., Yang, J., Yang, X.Y., Guo, Q.H., He, J.F., Li, K.R., Du, J.L., Hou, J.B., Zhang, X.G. 2020. A New Early Cambrian Konservat-Lagerstätte Expands the Occurrence of Burgess Shale-Type Deposits on the Yangtze Platform. Earth-Science Reviews, 211(103409):1-13 PDF LINK
  4. PetrosTrilobite

    4.5 inch Huntoniatonia tail!

    Most of Huntoniatonia trilobite specimens are 1.5 to 2.5 inch long. But this is only a tail from a trilobite of the genus, and it is 4.5 inch long! I have see it on a fossil website. Really monster trilo!
  5. Hey everyone, I just got a small lot of trilobites in the mail and I’m not really sure what I’m dealing with. It wasn’t very pricey for these 5 bugs plus a low grade Moroccan trilo that I know the ID of. So I figure I’ll buy now ask later lol. these 2 seem to be the same trilobite I’m just totally unsure from where. I’m guessing China maybe? pretty sure this is the well known Pseudogygities from Canada...or maybe it’s a similar genus? these almost look like cousins to Olenellus with the body plan. Seems like a Cambri
  6. Hi All, I have recently started my fossil collection, I am still figuring out what I really enjoy and what fits in my budget, but atleast trilobites really got my interest. I have some experience in collecting in general and I decided to buy nice specimens, especially for the common trilobites, rather than starting off with less preserved ones and having to upgrade them in the future. I want to share my first two trilobites: If anyone has any opinions and information about them, please do not hesitate to do so! My knowledge is still small in the fossil world.
  7. JamesAndTheFossilPeach

    Fossils 2020

    With 2020 over with its now a good time to look back at the year. It was a decent year for fossils. I explored many new spots and was able to meet many new people, 6 feet apart of course. With the diagnosis of tendinitis i was not able to dig much this year but i was able to make the most of it. The first thing found since my last post was this epic bryozoan colony. It came out of the very top of the Wanakah shale and weighs almost 8 pounds. Im unsure of species but I think its pretty cool
  8. Hello, I've been recently fascinated by large isotelus trilobites. Does anyone on here own one and would like to show and talk about it, I would if I owned one but I don't see that happening anytime soon haha. This is the largest I've seen for sale so far that would've been 8 inches, would be nice to be able to find one but I don't have that luxury.
  9. paleo.nath

    Nevada trilobite ID help

    This trilobite was found in Lincoln county, Nevada and I am having trouble identifying the species, any ideas? Its about an inch wide at the cephalon
  10. PetrosTrilobite

    Your "wish list"

    What is your "wish list"? My wish list, i think is this: 1) Morrison fm Sauropod tooth 2) Acrocanthosaurus (I know that is very, very rare and i will never get one) 3) Troodon tooth 4) Suchomimus 5) Ceratosaur tooth 6) Morrison theropod 7) Dimetrodon tooth 8) Tyrannosaurid tooth 9) Acheroraptor 10) Pliosaur tooth I write only about dinosaurs, reptiles and synapsid because if i will add more clade, is very hard to make the list.
  11. Taking advantage of my time spent home, I finally got a couple of glass display cases to showcase fossil specimens from my collection. Finding ones that were affordable and blended with the style of our home, was challenge, and I took my time choosing. Despite a bit of criticism I receive from some of my fossil collecting friends, I am a generalist collector who doesn't specialize in anything. Having said that, my collection does feature some rare faunas; Devonian and Cretaceous bivalves, Lower and Middle Devonian brachiopods and gastropods, Cretaceous vertebrates, etc. The focus is largely on
  12. paleo.nath

    Hoppin Hill MA

    Hello, i’ve just recently found out about the possible trilobites that can be found near Hoppin Hill Massachusetts, does anybody have any information on where exactly these are and if they are available to the public?
  13. I received some Waldron Shale trilos for prep today. As always I made a brief examination of the matrix in search of any other fossils. I came across these, that I think may be cross sections of bugs? I should clarify that I have 0 experience with such cross sections. If they were, I'd assume the smaller one is the standard C. breviceps but the larger is curious. It's about 1.75 in/4.5 cm across and appears to have tubercles. What do you guys think, am I way off base or have I found something interesting?
  14. Oxytropidoceras

    Why did trilobites go extinct?

    Why did trilobites go extinct? By Donavyn Coffey, Live Science, November 2020 https://www.livescience.com/why-trilobites-went-extinct.html The open access paper is: Jonathan L. Payne, Alexandra V. Turchyn, Adina Paytan, Donald J. DePaolo, Daniel J. Lehrmann, Meiyi Yu, and Wei, Calcium isotope constraints on the end-Permian mass extinction. PNAS May 11, 2010 107 (19) 8543-8548 https://www.pnas.org/content/107/19/8543 A totally unrelated article is: The role of cat eye narrowing in cat-human communication by El
  15. ScottBlooded

    Trilobite partials, mid Devonian

    Cephalon partial from the needmore near winchester VA, middle Devonian. Looked familiar so I looked it up in the book I remembered it from and it lists it as unidentified, but resembling Lichas. As I was looking at it I noticed below it an illustration that looked just like a couple of tiny partials (pygidiums) I had saved from the same spot. Book lists these as unidentified too, but was published in 1991 so I was wondering if anyone here had any ideas. I’ve found a lot of damaged cephalon partials like this out there so if I know what the rest of the bug looks like, I can maybe keep myself fr
  16. Greetings everybody! While I was on my fishing trip last weekend I took some time to look for fossils. I collected at a couple of creeks exposing the Middle Ordovician Trenton Group in North-Central NY. I found lots of trilo-bits and other goodies! Enjoy
  17. What is the most rare fossil on your collection? I think the most rare fossil on my collection is a Huntoniantonia huntonensis (my profile photo). You?
  18. Hey everyone, I’ve been meaning to get this post up for a few days but I’ve been dealing with my poor cat inky (Sweetheart of a cat) who is on her final day of life today. I will have to put her down November 1st. Very sad time as she’s been my companion the last 13 years. I’m sure many can relate. I’ll try to keep the chatter short and just get up as many photos I can for you kind people on the forum to enjoy. I just got back recently from an amazing trip to Utah and Nevada (Oct/11/2020-Oct/18/2020) Where I was camping in the field and trilobite collecting for 6 days s
  19. Jurassicz

    Prepping trilobites

    I got some trilobite fossils that i found many are possibly complete bodies but how do i prep them? How do i know where the body starts and ends? I kind of know where the body ends because of the size of the trilobites. But not really what way it goes in the rock. Up down the side? It also depends on the rock. Its not shale its limestone from kinnekulle. What really worries me are the rib things i Will use dental picks and small and other small sharp hand tools
  20. So i got a trilobite pygdium that i i will prep but under it theres not alot of matrix so i was worried that it would fall apart. So i put some cyanoacrylate on the back. Heres some pictures the dark is cyanoacrylate. But the question is is it needed to keep the trilobite whole when prepping?And should i put more on the back as i prep more?And after should i remove it with acetone? If It needs to be there to keep it complete how do i make transparent? I got 2 trilobites that look really flaky pieces of shell looks very flaky and probably will fall apart if i Touch it. How do i fix the flaking
  21. Jeffrey P

    Back to the Ohio Valley

    Hi Everyone, I took a 2 week trip to the Ohio Valley, arriving back in New York about a week ago. It was primarily a family visit since many of my relatives now reside in the Elizabethtown, KY area. However, the Ohio Valley, as some of you know, is very rich in Paleozoic fossils and I just had to make a few stops on my way there and back as well as between family engagements. I will try to share enough to give you all a gist of it: It was a long day's drive from the northern suburbs of New York City to Richmond, Indiana where I spent the first night. The next day I was headed down State R
  22. Last month my dad and I took a four-day weekend trip to Western New York to visit some new fossil sites and to collect in the famous Beecher's Trilobite Beds. We had only once before been out to Western New York to collect fossils - a visit to Penn Dixie Fossil Park - so this time around we wanted to try out some different places that we had never collected in before. The trip was a lot of fun and I enjoyed putting my research skills to work in finding new places to visit. I greatly expanded my collection of Silurian and Devonian fossils and found quite a few things on my fossil bucket list. I
  23. Does anyone have tips for visiting Lost River, WV? I looked at fossil guy's website for tips and decided I wanted more. Is it still accessible? I heard that there were some exposures along the way. Are there any worth my time?
  24. Georgemckenzie

    Trilobites from Wales please ID

    Just won this at auction was really inexpensive out the blue buy an Help with id would be great thanks says there from wales
  25. Kane

    A Week in Quebec

    I'm just easing back to regular life after a week of fossil collecting in the province of Quebec. We had a fantastic and highly productive time. There are a number of sites that I cannot mention publicly, and also some excellent specimens that I am sworn not to post anywhere, but I can show a few things. I haven't photographed everything yet, either. We collected mostly in the Neuville and Nicolet Formations. The first stop was Kingston, Ontario where we met up with a fellow fossil friend for a brief time. I obtained my own physical copy of Isotalo's book. I then meandered to a roc
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