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Found 261 results

  1. Looking for trilobites

    Hi. I live in Michigan, and am considering driving 5 hours to Waynesville, Ohio and the Caesar Creek State Park, where I hear that people have found trilobite fossils. I've also heard that by this time of the year, the fields have been picked over pretty well, and to wait until the spring, when the freezing and thaw may unearth more specimens. Anyone have a thought on this?
  2. Currently slimming down the collection and offloading some excess trilobites to make room for others. Looking for Ordovician or Devonian trilobites I don't yet have. Pictured here are three Devonian bugs, of which I have numerous examples. These are not rare specimens, but ideal for those who want a specimen example from areas that they cannot collect from, and who cannot necessarily afford museum quality examples. Left: A mostly complete Greenops widderensis from the Widder Formation, Middle Devonian. Ideal for prep practice. Right: Pygidium of the dalmanatid Anchiopsis anchiops. Thorax is rarely found, and complete ones are as scarce as hen's teeth. Bois Blanc Fm, Lower Devonian. Bottom: Prep practice delight. Complete semi-prone Eldredgeops rana with pygidium tucked underneath. Windom shale of PD, Middle Devonian. I can entertain more than one trade offer as I do have other examples of these I can part with. * Shipping within North America preferred. * I reserve the "right" to pad the trade package you'll receive with other assorted Devonian items. I like to add bonus stuff.
  3. Should I/ how do I prep this?

    I recently took a trip to the lost river site in West Virginia (Devonian, needmore fm) and I found a few partial trilos. Here is a plate that has at least three ( I assume Eldredgeops, but I have to see the cephalon first), and I'm wondering how I can tease them out. The shale is delicate (already had to glue a little just in case), and the three trilobites lay under about 1/2 an inch of stone, which is just a painful amount to go through with a manual scribe (which I lost, so I need to get a new one). I don't really wanna take my chances with a split, so what should I do? Is it worth sending to a pro? thanks!
  4. 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.
  5. Hi rock heads Last weekend I was teaching in London which gave me the opportunity to break the journey up by stopping off 2/3 of the way home to Manchester at Wrens Nest. Wrens Nest is situated in Dudley, a town close to Birmingham in the West Midlands, UK. Wrens Nest is the best and productive Silurian site in the UK. Here's two maps of the location Not often you find a site of this size and quality bang in the middle of a large town! There are are three options for parking, the actual car park (which was locked as a UK public holiday. Or The Caves pub next to Wrens Nest. Or the road. After a two minute walk I was in the national park. No hammers are allowed or needed! Here's the Silurian sea bed. It's cordoned off as there are regular rock slides revealing another layer of sea bed. Cool huh?
  6. I'm sure there's a very simple answer to this, but I'm honestly astonished by the range and quality of fossils that come out of Morocco. I was browsing around this morning for fun looking at some of the general fossils for sale online, it seems like half of them come from there! Large therapods such as Spinosaurus, or crazy trilobites like Dicranurus. What is up with the crazy fossil diversity in that country?
  7. Mt Orab Ohio Trilobite Farm

    @Isotelus I had the Privilege to be invited to dig at the Famed Trilobite Farm in Mt. Orab Ohio by Dan Cooper. Home of some of the best preserved trilobites in the world. I met Dan at a rest stop at 7 a.m. Saturday and we proceed to the location. I have never dug trilobites in Ohio soo Dan was nice enough to show me the what to do and how to work with the matrix. I have only dug trilobites at Penn Dixie. If you ever get the chance to dig with Dan cancel whatever other plans you have, There is likely no one more knowledgeable about Ohio trilobites. It was a cool morning for August so we didn't have to worry about the usual August heat. We dug from 7 to about 11:30. So you know how when you go fishing you always come home and talk about the one that got away? I have to of those stories from Saturday morning. As we were pulling out some layers of shale what should appear but what would have been an 8 or 9 inch Isotelus laying prone. It was beautiful but it wasn't meant to be. As the layer was being pulled out it was clear that the Isotelus was too broken up and falling apart. There was really no way to save it.
  8. The RAREST trilobites in Arizona

    Greetings all, I thought Id put together a write up on some of our most recent experiences in the Permian exposures around northern Arizona where we live. This is turning into a great project, we are learning more about permian fossils than ever before and have found quite a few new surprises as well. Here is what I have so far: Arizona has a rich sedimentary rock record both in the northern part of the State and south of Tucson. Trilobites, which are only found in Paleozoic aged strata can be found in many of them, although they are rare except in Cambrian rocks. The rarest and hardest to find trilobites are in Permian aged rock. This includes in northern Arizona the Kaibab and the Fort Apache Limestones. But the Fort Apache is a very thin bed in the Supai formation - only tens of feet thick west of Payson, and at a maximum of 100 feet thick in the inaccessible areas on the Fort Apache Indian reservation which is the easternmost exposure. East of Payson, the limestone contains virtually NO fossils. This starts to change around Strawberry north of Payson where very rare gastropods can be found. Finally, the easternmost exposures on Highway 260 just before you top the Mogollon Rim (southern edge of the Colorado Plateau) are the last you will find until a hundred miles to the east on the reservation. Fortunately, there are areas along the High line trail that cut right into the scree slopes of the Fort Apache Limestone outcrops. Here, for the very first time we can find fossiliferous limestones with silicified invertebrates which can be released by treatment in muriatic acid. (about 10% dilution) Very little has been published on the Fort Apache Limestone recently. Up until recently, the best I had was the 1964 paper "Stratigraphy of the Fort Apache Member Supai Formation (Permian) East-Central Arizona" by Thomas Gerrard of the University of Arizona. Although he discusses the stratigraphy and geology at length, very little information on the enclosed fossils is to be had. Fortunately, I was able to get through a very kind fossil forum member a copy of Winters epochical paper from the GSA Memoir 89 - "Supai Formation Permian of Eastern Arizona" written in 1963. (Nothing significant has been written since.) This outstanding 99 page memoir covers not only what is now called the Schnebly Hill formation which is a Sahara type dune complex that brackets the limestone above and below, but a superb treatment of the rare fossils which they found in the Fort Apache Limestone - From the richest 6 areas directly on the Indian reservation. What Winters did was truly inspiring as far as collection and field work. They spent 1947 collecting one ton of limestone from the best localities, and then trucked this huge crate of rock back to the Smithsonian where they spent years acid reducing the rock down to its insoluables! And it took them over a decade to write the Memoir in 1963 on the geology and paleontology of the formations. From that one ton of rock, they obtained a few fragmentary trilobite fossils and many other more common types such as mollusks. And this leads me up to the present. We have brought back so far over a hundred pounds in promising rock in our backpacks, and spent many hours dissolving it in the masonry muriatic to free the specimens. Then three sizes of sieves were used to sort them according to size. Amongst the countless tiny gastropods which dominate the fauna present, two or three trilobite pygidia and many fragments were found in the acid fines. The preservation is key - unlike all the other fossils present which are preserved in a white silica that is fairly opaque, the trilobites are always preserved as casts of a yellow translucent opal like silica, making pieces easier to spot in the sorting trays under the stereo microscopes. You can see this unusual caramel colored preservation here in this set of images from the first 120 pounds of rock we have processed. Winters partial specimens allowed him to get a good approximation of the genus and possibly the species. Below is what a complete pygidium of Anisopyge sp. looks like from the Treatise volume O. So rare are Permian trilobites, only a page is devoted to all of them! 10x microscope shot (field about the size of a dime) of many of the common trilobite fragments found. Winters identifies this trilobite as Anisopyge cf. A. inornata. (cf. is a Latin abbreviation meaning "compares to") In the most recent trip with 60 pounds of rock, this all we got - a few pieces of the outer rim of the pygidium. Most complete specimen so far a nice pygidium with the ribs visible. it is roughly 1 cm tall. The trilobite would have been less than an inch in size. Oblique view same specimen. Another pygidium (tail) still attached to some matrix. The specimens are so delicate, I am afraid to even try to pick them up with tweezers, as they will fall apart. To move them I use a wet toothpick and stick them to the fossils. A glabella (nose) both front lip and top part which fell apart. Here I am at the locality this morning (Sept. 1) looking for promising limestones. Usually, the ones with the most urchin spines on the surface seem to have the best fossils inside! Thanks for looking. Ill be posting a more compete version of this on our paleo web site. The exploration of the Fort Apache LImestones continues!
  9. Eldredgeops Cluster from Smokes Creek

    From the album Middle Devonian

    Eldredgeops rana (Cluster of partial and complete trilobites) Middle Devonian Moscow Formation Windom Shale Hamilton Group Smokes Creek Blasdel, NY. prepared by Ptychodus04
  10. The holotype of Anisopyge cooperi Brezinski 1992 Brezinski, D.K. (1992) Permian trilobites from west Texas. Journal of Paleontology, 66(6):924-943 Öpik, A.A. (1967) The Mindyallan Fauna of north-western Queensland. Bureau of Mineral Resources, Geology and Geophysics, Bulletin, 74(1):1-404 PDF TEXT 74(2):1-167 PDF PLATES Öpik, A.A. (1970) Nepeid trilobites of the Middle Cambrian of northern Australia. Bureau of Mineral Resources, Geology and Geophysics, Bulletin, 113:1-47 PDF
  11. Last weekend decided to drive down to Missouri to catch the solar eclipse and look for some fossils in the Upper Cambrian Davis formation. My time was pretty limited so was only able to check out a couple different spots for short periods of time. Lots of worm burrows, disarticulated trilobites and weird trace fossils. The shale was pretty dusty so it was difficult to see what I was looking at in the field. I feel like I barely scratched the surface. Here's an interesting one with what looks like a long genal spine and water ripples (?). My understanding is this was a back reef lagoon surrounded by a microbial reef and the St Francois mountains were islands during the Cambrian. Not sure what's going here.... any ichnologists out there? Another plate with a lot going on. There are some small tracks on the middle far right.. Trilobite parts... Possible Cliffia lataegenae cephalon? Hard to tell for sure after half a billion years... Thanks for looking and for any insight!
  12. Recently I was for one week in the Ardennes in Belgium. There I visited different locations where you can find fossils. For example I was in Barvaux and found many brachiopods: http://www.thefossilforum.com/index.php?/topic/77098-mainly-brachiopods-from-barvaux/. I also visited the old Lesse quarry near Resteigne, where you can many different fossils. For instance I found many brachiopods, corals and also some trilobite parts ! The layers belong to the Eifelium, Middle Devon. Too bad that the weather was not that good but I am nonetheless satisfied with my fiends: Here are some pictures of the quarry: Its an old quarry and the nature reclaims the area more and more. So you also see some nice animals ! Now too my finds: Firstly some brachiopods: They are indeed very common there so I found many. Those brachiopods are all Sieberella sp. or? Here a detailed picture of one (3 cm long): And this should be a Spinatrypa sp. or?
  13. My wife and I are starting to plan a trip for late September from our home in Northern California to do some trilobite hunting in Nevada and Utah. Our main objective will be the U-Dig quarry out of Delta, Utah, but I'm also thinking of stopping at the Oak Springs Trilobite Site near Caliente, Nevada. I've been to both places once before, about 10 years ago. I did pretty well at U-Dig but struck out at Oak Springs because I didn't know what I was looking for. Does anybody have any current advice for either of these sites? I tried to search this forum for "U-Dig" but it returned no results even though I know some of you have posted about your trips there in the past. And if anybody has any advice for Oak Springs (necessary tools, how to search, etc.), I'd appreciate it. And if there are any other sites we should visit along the way (we won't be able to get to Green River this trip), let me know. I'll update my post once we get back (assuming we don't strike out!).
  14. here What NOT to expect: it's not a "pictorial atlas of...",far from it. Expect character matrices,cladograms. Any part dealing with ptychopariids might have been published already ,BTW
  15. 10 flexis from about as small as they get to as big as they get in St Leon. I now have both my new largest and smallest flexi from this location.
  16. Planning A Trip to Penn Dixie

    Hey friends! Work is taking my wife and I to Burlington, CA at the end of August. Penn Dixie has ALWAYS been on my bucket list. Therefore, we've decided that we will take a day trip down there! I'd love to organize a trip with other fossil enthusiasts! We are thinking around August 28th or so. Let us know if you'd like to form a little band of troops to head down there!
  17. Deep Springs 8-13-17

    It has been awhile since me and my boys have been to Deep Springs. I decided to go today and I brought along my Dad and brother. It was the first time either of them have came along for this type of fossilhunt. Both have gone sharktooth hunting with me. We got there around 11:45. The sun was out in full force. I found plenty Dipleura parts and pieces, but unfortunately no whole ones. Dylan my middle boy, found a lot of Greenops pieces including his most complete to date. He was happy with himself. Everyone else was finding the common brach, gastros, bivalves, and other assorted goodies. Two guys showed up and we talked for a little bit. The one guy said he was a fossil forum lurker. A highlight of the day was finding a nest of snake eggs mixed in with the rubble. But I feel bad because I think I broke two of the eggs open by accident. The babies were still alive but I am not sure they were ready to hatch. Later I caught, what may have been the mother. My brother really didn't do much , but my Dad took I chisel and hammer and made some good finds for a newbie. We stayed till about 2:30. All in all it was a nice day to be there. I was glad to has my dad and brother along as well. I made my best find of the day on the way out. A nice little Greenops just laying on the ground waiting to be picked up.
  18. Back at the end of 2015 I posted about an Early Christmas present...went hunting on a ridiculously warm Christmas Eve at a roadcut near an exit on I75 between Dayton and Cincinnati. Found some Flexiycalymene trilobites, RafInesquinas, and Cephalopods - Orthocones. That spring I went to the other side of the highway and found some more of the same plus these trilobites: I then decided that I would visit each of the roadcuts between the I675 and the I275 interchanges. This has taken me until this past May...about a year. The one closest to Dayton was pretty disappointing. I picked up a few nice Strophemans, a RafInesquina, a partial Leptaena, and a few brachs (right of the coin below) I was unable to identify...there were a ton of those. I went back to the initial interchange but went to the exits at the south end. Google maps said it was about 70 feet lower than the north exit ramps I was not expecting what I found.... It was a Vinlandstrophia Ponderosa mecca. Both sides of the highway as it turned out. Here are some from one side. The other side had nearly as many. Some broken and showing nice geode centers Along with a nice array of Orthocones, RafInesquinas, Gastropods and even a few Horn Corals. I've never found horn corals along side the Vinlandstrophia Ponderosas. The next stop, slowly getting closer to Northern Cincinnati, was a very exciting spot not only Cephalopods and RafInesquinas but some unexpected Flexicalymene trilobites: Including the largest "roller" I've ever found (2 views)...As big as a quarter. I had to prep it as soon as I got home. As I got to the last roadcut before I275 I didn't know what to expect. No 2 consecutive were the same. Even the same exit was different at north and south.
  19. Hello everyone, I was patrolling my odd Devonian location that has rocks I'm guessing from Upstate New York that are littered with Devonian fossils and came across this on one of the large rocks (unfortunately I can't extract). I'm unsure if its maybe a seas scorpion, trilobite, or something else. My guess leaning towards sea scorpion of sorts but I'd like to hear what you guys think, its the only of it I've seen in the area wish there was more or the rock it was on wasn't a unliftable boulder haha.
  20. Every now and then, like lately, when I cant prep cause my compressor is down, i have to find other stuff to do, and in doing so I run into fossil stuff Ive forgetten about. I was prepping, (using my foredom grinder), out a rather large ammonite for my sons freind and once I put on some 2 part putty and had to wait for that to cure, i decided to do some snooping in my garage. I ran into this Russian trilobite and a Lituite multi plate from china. I bought these things a long time ago back when i use to do the fossil shows. I didnt find them or prep them so they have no sentimental value whatsoever. Not sure what to do with them at the moment? But still, all cool stuff. RB
  21. From the album Ordovician

    Isoteles gigas (enrolled juvenile trilobite) Upper Ordovician Verulam Formation James Dick Quarry Brechin, Ontario
  22. From the album Ordovician

    Flexicalymene sp. (partial trilobites) Upper Ordovician Verulam Formation James Dick Quarry Brechin, Ontario
  23. From the album Ordovician

    Isotelus gigas (partial trilobite) Middle Ordovician Verulam Formation James Dick Quarry Brechin, Ontario
  24. Greenops Trilobite in pyrite nodule

    From the album Middle Devonian

    Greenops sp. (enrolled trilobite preserved in pyrite in pyrite nodule- missing part of cephalon) Middle Devonian Lower Ludlowville Formation Hamilton Group Spring Creek Alden, NY.
  25. Three on one Eldredgeops from Smokes Creek

    From the album Middle Devonian

    Eldredgeops rana (three trilobites- two casts, one imprint) Middle Devonian Moscow Formation Windom Shale Hamilton Group Smokes Creek Blasdell, New York