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Found 526 results

  1. It was an all day outing on a perfect spring day in Central Upstate New York. Al Tahan and I visited a small private quarry where the Middle Devonian Oatkacreek Formation Mottville Member, part of the Marcellus Shale and the lower Hamilton Group is exposed. It's been about a year since I visited the site which I've been coming to for the past five years and it was Al's first visit. Erosion had broken down almost all of the pieces of shale which covered much of the site on previous visits. However a lot of fossils here, preserved in calcite are weathered free from the matrix and surface collecting can be very productive. This is by far the best site I've been to for the gastropod, Bembexia sulcomarginata. There were dozens strewn about the site. I couldn't resist picking up a few adding to my already extensive Bembexia collection. Brachiopods were also plentiful, especially the large spiriferid, Spinocyrtia granulosa (upper right). I couldn't help adding this inflated example to my large collection. Upper left is Mucrospirifer murcronatus, certainly one of the most abundant and distinctive Middle Devonian brachiopods in New York. Lower left is Protoleptostrophia perplana, a Strophomenid.
  2. Whittington, H.B. and Evitt, W.R., 1953. Silicified Middle Ordovician trilobites (Vol. 59). Geological Society of America. https://pubs.geoscienceworld.org/books/book/65/Silicified-Middle-Ordovician-Trilobites (free download until June 30, 2020) Whittington, H.B., 1959, Silicified Middle Ordovician trilobites: Remopleurididae, Trinucleidae, Raphiophoridae, Endymioniidae. Bulletin of the Museum of Comparative Zoology at Harvard College. vol. 121, pp. 369-496. https://www.biodiversitylibrary.org/part/32962#/summary https://www.biodiversitylibrary.org/page/4778534#page/501/mode/1up Hu, C.H., 1974, September. 635. Ontogenies of two Middle Ordovician trilobites from the Edinburg Formation, Virginia. In Transactions and proceedings of the Paleontological Society of Japan. New series (Vol. 1974, No. 95, pp. 353-363). Palaeontological Society of Japan. https://www.jstage.jst.go.jp/article/prpsj1951/1974/95/1974_95_353/_article/-char/ja Hu, C.H., 1976, April. 657. Ontogenies of three species of Silicified Middle Ordovician trilobites from Virginia. In Transactions and proceedings of the Paleontological Society of Japan. New series (Vol. 1976, No. 101, pp. 247-263). Palaeontological Society of Japan. https://www.jstage.jst.go.jp/article/prpsj1951/1976/101/1976_101_247/_pdf/-char/ja https://www.jstage.jst.go.jp/article/prpsj1951/1976/101/1976_101_247/_article/-char/ja/ Bruton, D.L. and Nakrem, H.A., 2005. Enrollment in a Middle Ordovician agnostoid trilobite. Acta Palaeontologica Polonica, 50(3). http://agro.icm.edu.pl/agro/element/bwmeta1.element.agro-article-e5a5ef53-3af9-4efd-b8b3-ca3006e0e32d/c/app50-441.pdf Yours, Paul H.
  3. Is this part of a trilobite?

    Hi guys, I am not very good at identifying fossils yet. Its my main goal to find trilobite fossils because I think theyre really neat and I am wondering if these are possibly sections of a trilobite. I dont think there is a lot to go on but I was extremely impressed by the speed and ease that was required to identify my last find (thank you very much Kane!). There are two fossils, one is orange-y and the other is a darker grey and harder to see.
  4. New York fossil trip by mail

    A while back, @Darktooth and I did a little trading. Somewhere in the mix, he mentioned that his educational outreach (and collection) would benefit from some examples of C. chubutensis. I sent a couple of examples and it seems all that cuspy goodness went to his head. I received a COVID care package from Dave a week or so ago that contained a complete New York fossil trip in a box! I was completely blown away and the objects have given me quite a bit of entertainment. The field-trip-in-a-box was complete with lovely hand written tags, so everything was ready to put right into a large riker box. No way Dave could have known this, but my family has been self-quarantined because my son had a known COVID exposure. This care package has been a welcome distraction, to say the least! My absolute favorite is the Grammysioidea. I'd seen these in past posts and online. They are just as cool in person as in pictures. Thanks for the awesome collection and distraction Dave! Case with fossils and labels Bembexia sulcomarginate Dipleura dekayi Grammysioidea alveata Greenops sp Greenops sp Greenops sp Rhipidomella sp
  5. Hello, I’m a beginner of collecting trilobites fossils, and I have bought one recently but seems it’s a fake trilobites. Can you guys help me plz. Thanks!
  6. A few weeks ago I went on a fossil hunting trip to Albany County. I was hunting in the New Scotland formation which is lower Devonian in age. It was very quick and easy to collect in and the dry dredging technique was quite useful. The rock was a very thin shaly limestone which could break easily but many of the fossils had been silicified, making it easy to pop them out of the rock. I found many different species of brachiopods, some gastropods, lots of corals and large bryozoa and a few trilobites
  7. 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.
  8. Hey everyone!! I'm writing in to see if anybody has a preference between Paulding fossil garden and Sylvania fossil park for finding trilobites. There is a spot at the header of this entry which nobody else has talked about that might yield some gems. Posts about Paulding seem like hit or miss trilobite presence. Which site would be more "picked over" do you think, if you do at all? I'm driving through Ohio soon and can only stop at one spot. Trilobites and microfossils are my priority and all else would be a great bonus. If anyone cares to weigh in I would greatly appreciate it - I don't know where to start! Thanks, Justin
  9. Sunday was the warmest and most pleasant day so far this spring. I decided on a solo venture up north to Schoharie County, N.Y. My destination was two road cut sites which expose the Lower Devonian Kalkberg Formation, part of the Helderberg group. The primary attractions here are the abundance and diversity of fossils, and very good preservation. The first road cut site is immense and I spent about three hours surface collecting. Most of my finds were brachiopods, some very nice specimens of Leptanena rhomboidalis, Discomyorthis oblata, Meristella, sp., Costistroponella sp., and a variety of Rhynchonellids. Also found a gastropods internal mold, an Enterolasma strictum, a rogose coral, and a 8 by 7 inch Favosites helderbergiae, a tabulate coral colony.
  10. Trilobites from Sweden

    Wins from an auction hosted by my friend @Kasia These bits are in a medium grey limestone found at Raback, near Kinnekulle, Vastegotland, Sweden, so are probably from the Upper Cambrian part of the Alum Shale Formation. Maybe Peltura scaraboides? Or is there not enough left to get close to an id? Max 5 mm wide and 4 mm long. All specimens are on the same rock. The scale's in mm and is partially obscuring a bit seen better below : Not really expecting too much from these tiny fragments, but any help or blind guesswork very much appreciated. @piranha @Johannes @Dromiopsis But anyone else more than welcome to comment too Thank you.
  11. Triarthrus day !

    First sunny day of the week . Wife and kids getting slowly crazy while I have to deal with a higher than average workload from home. Hum ...time to steal a few hours with the two oldest ones and get back to the Nicollet Fm (ordovician ) nearby. This time Flexys did not make the cut , or none did with all parts intact ( except maybe one found by my eldest) . This Triarthrus Rougensis made my day though , the best (by far ) I found so far . Followed by another promising one later .2 and a half hours well spent! PS: wow , just noticed this is my first post since landing here ! Time flies faster and faster ..
  12. Three Unlabeled Trilobites to ID

    Being stuck at home has given me the opportunity to rummage through my fossils. I started with my trilobites. Weeded out three containers of Isotelus partials to give to the local sand pit. But I found 3 unidentified trilobites tucked in with the Isotelus for some reason.. Any help at IDs is appreciated. 1. Gerastos?? I think this was a gift to me many years ago. 2. Thaleops? Though I considered Illaenus or even Bumastus. The matrix looks like the Platteville, Ordovician 3. I have such difficulty with "rollers"! Thaleops? Matrix looks like the Galena, Ordovician that I frequent.
  13. Are these the same?

    Are these two odontopleurid pygidiums from the same species? They don't seem to match up. Same locality, Maquoketa group.First one measures 4mm across and the second measures 2mm. I'm finding not much information on odontopleurids from the Maquoketa... Leonaspis? Any help appreciated.
  14. Big trilobite from Gore

    Found this big guy in Gore. The head was exposed so I kept chipping away hoping there was more to him, and sure enough! It took about an hour to chip away the surrounding matrix, and at the end I thought I'd have to break him to extract him fully, but I pulled and he popped out! Is he deformed or just big? The head looks kind of smushed. Apparently my pics are super large so I'll try to add a couple more in the comments.
  15. Spring of 2020 We took advantage of the time off and the break in weather to hunt one of our favorite streams here in Western New York. This was just a spring scouting mission to see what was exposed after the ice and snow has melted. Some of the more interesting finds were a crinoid crown (very rare for this locality) possibly Logocrinus, Spinocyrtia granulosa open with both valves, Orthospirifer marcyi, a large Megastrophia concava cleaned by nature with epibionts, and 3 small nearly complete Greenops. We also found many small Favosites coral colonies, large Heliophyllum corals, and 8 different species of brachiopods. Happy Collecting!
  16. Local Silurian

    Yesterday I decided to make a quick trip before the Illinois stay at home order took place. For the past 4 years I've been trying to find all 16 of the trilobite taxa in the Sugar Run formation. So far I've found 12. The lichids are eluding me, except for a partial Trochurus welleri found last year. Here is what I think is a lichid fragment (?) Dalmanities illinoisensis pygidium continued...
  17. Hello community, due to the coronavirus, Virginia Tech amongst many other schools forced evacuation of campus, so I was forced to go down to VT to quickly clear out my dorm. I ended up staying at my brother’s house for a few days with him and my girlfriend just to enjoy the peace of the empty school. Yesterday, my girlfriend and I drove down to Pearisburg and hiked to see the cemetery then to hike up the Appalachian Trail to Angel’s Rest. On the way down the Appalachian Trail, I began inspecting what I believe to be as shale and noticed a small shell imprint. I began fiddling around with more of the rocks and then directly into the side of the mountain looking for more shells or other possible fossils. I noticed a shell shaped stone in one of the rocks and I would appreciate verification that it is/is not a fossil. Also, same goes for the tiny protruding dots on the last fossil. Lastly, all identification would be very helpful (I barely know anything about fossils in this area and only know this area was covered by a sea during the Silurian/Ordovician period because of limited research). Rock 1: -Shell imprints Rock 2: -Shell -Trilobite?? -Shell imprints Rock 3: -Shell?? Rock 4: -Shell imprints Rock 5: -Shell?? And shell imprints Rock 6: -“Dots/bumps” possible trilobite? -Shell imprints
  18. EDIT (Updated MAY 3): Current 2020 Running Tally of Ontario Bugs Acanthopyge contusa Anchiopsis anchiops Burtonops cristata Calymene platys Coronura aspectans Crassiproetus crassimarginatus Echinolichas sp. cf. eriopis Echinolichas sp. cf. hispidus Eldredgeops rana Mannopyge halli Mystrocephala stummi Odontocephalus n. sp. Pseudodechenella sp. Terataspis grandis Trypaulites calpyso Trypaulites erinus I'll be parking all my trilobite hunts for the year in this thread. With winter ending much sooner than we are accustomed to up here, it's about time to get back into the hammer-swing of things. This year is an ambitious one, no less on account of having spent some quality time with old literature, maps (new and old), to plot out a series of areas to prospect all across the province. A significant amount of fieldwork is planned as part of a broader research project. This past weekend was the season opener for me, with temperatures hitting about 4 Celsius on Saturday, and near 12 Celsius on the Sunday. By now, almost all the snow has burned off, with just a few shadier spots remaining. This is the view as I set out through the bush around sunrise. The ground was still frozen, which was fine as it made trekking over mud much easier.
  19. Early Sea Life

    From the album My Collection

  20. I started the "My trilobite of the week" thread in the Members Collections section as a way of getting myself to actually start photographing my fossils for the web site I am creating. I have many different types of fossils, but I only collect fossils from before the dinosaurs so that means lots of Paleozoic fossils and most of the ones I have are trilobites. As you would expect for a project like this I have been learning as I have been going along. I got my photography equipment for the specific purpose of photographing my fossils, so I have a different set of lenses than I'd have if I was doing photojournalism or wildlife photography. Most of my fossils are small, and nothing is bigger than a couple of feet long. The hardware: Canon EOS 5D Mark III camera. Canon 24-70 mm zoom lens. This is my most "ordinary" lens and the one least used. For pictures of big fossils and of visiting humans. Canon 100 mm macro lens. This is the main workhorse. Most of the trilobites are photographed with this lens. Canon MP-E 65 mm magnifying macro lens. This has no focusing ring, but has a 1 - 5x magnification ring. For small stuff, like agnostid trilobites. Cognisys Stackshot focusing rail. This is a focusing rail driven by a stepping motor. There is a little control box so you can control it manually but the normal operation is to plug it into a computer with a USB connector and control it by software. A focusing rail is essential for the MP-E magnifying macro lens and useful for the other macro lens. Two flashpoint LED photography lights, 4000K color temperature. These are big square arrays of LEDs, I put one on each side of the specimen to keep shadows to a minimum. A tripod. The focusing rail is attached to the tripod and the camera is attached to the focusing rail. I needed a way to get straight on dorsal shots. If the trilobite is flat on a table this is hard to do, I'd need some fancy hardware to point the camera straight down. So I made a 45 degree table with a ledge on it. I lay the trilobite on the table and point the lens down at a 45 degree angle, and get a straight on shot. The table was actually made from Styrofoam board I got at Staples. It's light as a feather, and sturdy enough for trilobites but I wouldn't put a dinosaur femur on it. If you've ever done macro photography you know the depth of field is very small. If you want the entirety of a 3D trilobite to be in focus you have two options. The first is to use a small aperture, say 24 or higher.. This increases the depth of field at the cost of some resolution and of much less light coming into the camera. The latter issue may not be too much of a problem -- the fossil isn't going anywhere, so you can simply use a longer exposure. The second option is to use photo stacking, which is what I actually do. In this case a series of photographs are taken at different distances from the subject, and the "in focus" parts are combined by software into one picture. Of course each picture is taken from a slightly different perspective so part of what the software has to do is pick is single reference point and map the pixels from each photograph into that single perspective. So, the software I use is: Helicon Remote -- controls the camera and the focus rail. This has a USB connection to both the camera and the focusing rail. This is used to take a series of photographs at different distances from the subject. Helicon Focus -- combines a series of photographs taken with Helicon Remote into a single in-focus-everywhere photograph. GIMP -- the poor man's Photoshop. Ideally the photos will be done right enough that all I have to do is attach the metadata copyright, and crop and/or rotate the picture. Unfortunately sometimes this ideal isn't met. DarkTable -- I use this solely to convert raw files to TIFF files. The photos from the camera are stored as raw files, Helicon Focus can work with raw files. It converts them internally into TIFF files when it processes them. To be continued....
  21. I am in NYC for 5 days at the beginning of March, and I intend on taking at least one of those days to go find some fossils somewhere. I have nerded out pretty hard and crossreferenced localities etc and I have basically narrowed it to Big Brook, Shark River, or trilobites. I would love opinions on where the collecting would be best between Shark River and Big Brook (I have a bunch of Miocene shark teeth from California but absolutely nothing from the Cretaceous). I have some trilobites from California (white mountains) but nothing particularly special. Any and all suggestions will be considered! I have no problems wading horribly cold rivers or banging open limestone as necessary. About me: I am a medically retired field/remediation paleontologist from California, so while i *taught* invert paleo at university, I spent most of my time chasing construction vehicles for Pleistocene megafauna. I have a pickup truck and am always ready to travel... but I moved to New Hampshire where there are ZERO FOSSILS AT ALL.
  22. Hello all! We are planning a trip (with a stop in Pennsylvania) to New York this May to hunt for Trilobites and could use lots of advice. We live in North Carolina, so it is a bit of a haul and we are new to trilobite hunting and to rock splitting fossil hunting generally. I'll lay out the tentative itinerary first and then ask a few specific questions. Any recommendations on the itinerary (additions or places to skip on a limited trip) are, of course, more than welcome! Tuesday Day 0: Drive to Danville, PA and check into a hotel Wednesday Day 1: Visit the Montour Preserve fossil pit ; drive to Buffalo, NY Thursday Day 2: Visit 18 Mile Creek Friday. Day 3: Visit Penn Dixie Quarry (1) Saturday Day 4: Visit Penn Dixie Quarry (2) Sunday Day 5: Drive back to NC The big questions we have (apart from whether this itinerary seems like a good first trip for ambitious new trilobite hunters) are: What tools should we bring? I know safety glasses, chisel and geologic hammer, but what about larger picks, prybars, hammers, shovels, gloves, etc? I've read about people "digging out" an area at Penn Dixie; what is required for that? And what is involved? Is there any rhyme or reason to the pieces you choose to split? What do you look for in a spot? Is there anywhere else "nearby" (within a few hours of anywhere on the route) that we should check out? What am I forgetting to ask? Thank you so much in advance for your help! This forum has been a great planning resource for me and I find more great threads to lurk on every day! Philip
  23. My great aunt gave this to me years ago, and I would like to know if it is real. I know there are tons of fakes, and would like to see if mine is real.
  24. My granddaughter was watching this earlier and I thought maybe there is hope for kids cartoons. Title was suspose to say peppa pig
  25. Middle Devonian trilobites ID

    I found this large rock filled with trilobite pieces yesterday near Manlius in central NY. I believe this rock is middle Devonian in age but I’m unsure of the formation.