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  1. From the album: Silurian

    Damanites limulurus Damanitid Trilobite Cephalon Middle Silurian Rochester Shale Burleigh Hill Member Upper Clinton Group Erie Canal Greece, N.Y.
  2. Hello fellow Trilobite fossils collectors. I have 2 specimens in my collection that were specifically prepared 'with microfossils'. So, instead of blasting away everything around the specimen, the preparator took extra efforts to maintain the surrounding 'environment' that the specimen was contained within. I really like this preparation style, and am wondering why the Trilobite fossils I see for sale on the web, etc are much more likely to be just the specimen itself carved out of the matrix and leaving only scrapes, scratches or smoothed rock nearby. Does anyone know why there aren't more fossils prepared with surrounding micro fossils? See images for examples of what I'm talking about. Thanks!
  3. Rock Hound

    Some New Acquisitions

    It's been a long time, since I have posted anything. I'll try to contribute, now. Best pictures I can get with a cheap phone, and not being able to be very still, myself. I took many duplicate photos. Sorry. I acquired these 6 fossils today. The Theropod tooth has visible serrations, when viewed with a common magnifying glass.
  4. What an adventure! I was on a trip to southern California with my partner. He does not like fossil hunting – yes I know what you are thinking but he is a very nice guy. You can’t have every thing! I wanted to go to the Marble Mountain Trilobite site in the Mohave desert. I did my research and knew exactly where I wanted to go. As I would be by myself I decided to be very clear about where I was going and how long I expected to be there. Off I went on a bright warm sunny day armed with gallons of water, a sunhat, fossil hunting backpack, many snacks, and a brand new Lexus. Yes I know you are thinking dumb dumb dumb! But as it turns out the lexus was an excellent choice, it had lots of power and reasonable clearance. I did high center it on some shrubs (sorry shrubs) and almost lost it in a sand bank. Power does win the day and I managed to get it about 3 miles away from the classic north end site by Chambliss. What I did not account for was that the recent atmospheric rivers had washed out a lot of the tracks and roads. I had a really big walk up to the base of the mountain. From there I struggled through boulders fields and scree slopes to get up to the famous red and green Latham shales. Oh boy what incredible rocks! Fortunately I am fond of lapidary too so I collected some glorious specimens. My aim was to find the blue green algal nodules formed by precipitation of the cyanobacteria. They look like elongated ovals and are found everywhere. I was gob smacked by these fossils. They are 518 million years old. The trilobites are mostly Olenellids and are rare. I struggled to find any of these and found mostly cool trace fossils. As I was completely exhausted getting to the top of this mountain and now had to get down it with a lot of rocks AND walk 3 miles across the desert to get back to the Lexus I made a decision – I would come back another day and find some of those trilobites. By the time I got back to the car my knees were shaking and I had drunk 5 litres of water and eaten everything I brought plus 3 candy bars. It was an amazing trip and the area is totally deserted. I never saw one person or vehicle while I was there. There is another trilobite site that is down towards the ghost town of Cadiz. This is the official BLM site and you are allowed to take small quantities of fossils. Unfortunately the road was completely washed out and unlikely to be repaired soon. Oh well that's for another day
  5. Hello, Could someone explain the specific distinctions between the Pennsylvanian-aged proetid trilobites Ameura vs. Ditomopyge vs. Paladin? They all seem quite similar-looking trilobites so I often have a hard time distinguishing them. Thankfully @piranha has already outlined Paladin vs. Ditomopyge in a PM, but I would like to know a comparison with Ameura as well. Thank you.
  6. Why doesn't anyone seem to prep the undersides of trilobites? We see innumerable examples of the "pretty" carapaces, but I should think the undersides would be at least as instructive.
  7. Today I enjoyed a wonderful fossilhunt, searching the Silurian age Rochester shale. Our trip was led by an actual Paleontologist who works at a local museum. The main focus of today's hunt were the trilobites Trimerus delphinocephalus,and Dalmanites limulurus. Other known fossils from the site included Leplaena rhomboidalis brachiopods, tiny rugose corals, and rare graptolites. We were informed that while there were plenty of trilo bits and pieces to be found, finding whole ones were a rare occurrence. When we got to the sight some club members started finding things immediately. Cephalons, pygidiums, and thorax segments were abundant. Most of what I found was very small. Until it happened. I split a slab open and found this beautiful Dalmanites!
  8. I have a collection of at least 50 fossils, and at this point, I have something from every major time period and major life group. I've been collecting for a couple of years now, with a focus on trilobites but I have lots of other things too. But I am being to be concerned that through collecting, I am taking away material that could be studied by scientists to learn more about prehistoric life. Of course things like Elrathia Kingii are so numerous and well studied that I think pretty much anyone could or should be able to own one, but sometimes I will purchase a fossil and there will be little to no information about it online. I'm also concerned since I've read about how fossil poaching can impact scientists' studies of a specific locality and that really bothers me if I've at all contributed to that. I don't want to donate my entire collection, as I love making displays in my house and looking them over to study myself, but there's a few I feel might be better suited in a place where they can be studied by actual scientists. I've learned so much through having them and seeing them in real life in my home, but I am not exactly equipped to be making studies that are contributing to the field. Is there anywhere I can loan them, or would they have to be officially donated? And if so, would they likely be destroyed to study or just kept in a library somewhere? Could I go and visit them or receive updates on their study? I'm not even in college yet, but planning to attend an Art School, and moving on to study Paleontology either after or if I don't enjoy Art School. I've volunteered a bit at a College cataloging fossils, and looking to do more volunteering and learning fossil preparation this summer. How do you guys reason with this with your own collections? Is it even ethical to own fossils at all? I'm curious to hear different opinions.
  9. From the album: Silurian

    Trimerus delpninocephalus Juvenile Partial Homolontidid Trilobite Cephalon Middle Silurian Rochester Shale Burleigh Hill Member Upper Clinton Group Erie Canal Greece, N.Y.
  10. From the album: Silurian

    Trimerus delpninocephalus Partial Homolontidid Trilobite Thorax Middle Silurian Rochester Shale Burleigh Hill Member Upper Clinton Group Erie Canal Greece, N.Y.
  11. From the album: Silurian

    Dalmanites limulurus Partial Dalmanitid Trilobite Cephalons Middle Silurian Rochester Shale Burleigh Hill Member Upper Clinton Group Erie Canal Greece, N.Y.
  12. From the album: Silurian

    Dalmanites limulurus Partial Dalmanitid Trilobite Pygidiums Middle Silurian Rochester Shale Burleigh Hill Member Upper Clinton Group Erie Canal Greece, N.Y.
  13. Hello and Happy New Year to all of my Fossil Friends! Yesterday and today I put in my first 2 hunts of the year. The weather here has been mild and I almost went fishing instead. But the fossil gods were calling to me and I couldn't resist their siren song. I decided to visit a site that I haven't been to for awhile. I am sorry but a have made a New Years resolution to no longer name locations for the world to see. This is a site that I have gone a few times with minimal results. Mainly it is a rather large site and the rock is hard to work. But I knew the potential for nice finds were there. So, Yesterday I arrived in the afternoon, planning on putting in a few hours. I started off on a lower layer. Now there is multiple layers of shale mixed with slate and limestone. The way this material fractures is rather strange. Which makes recovery of specimens rather tough. So while I found many cool things most where damaged in some way. Crinoids, brachiopods, bivalves, gastropods, nautiloids and trilo Cephalons were fairly common. Some were even pyritized. I must have been there for a couple hours before I decided to explore farther up the slope. I noticed a different color rock closer to the top, but there was really no where to stand. I grabbed a couple loose pieces and started seeing parts of corals and crinoids that were larger then any I have found before. Also partial trilo bits and pieces of Eldregoeps. I looked for a way to get to the very top of the slope and found a way that was not at first obvious. And then bingo! I found a small section that was easier to work and I immediately was rewarded. I started finding abundant amounts of horn coral, large crinoid segments and a nice slab with a horn coral with a trilo right next to it and possibly more. Then I removed a chunk of rock and uncovered a huge tabulate coral about the size of a dinner plate. Unfortunately this specimen was fragile and was broke into a million pieces. But I recovered some of the larger pieces. It started getting dark so I left for home with plants to go back this morning, which I did. Today was much of the same tons of corals but one horn coral was about the size of a grapefruit. This is definitely a different species than I am used to seeing. Most if not all need to be cleaned up and possibly prepped. So I plan on trying to clean up and get the mud off. I will post pics later this evening. It looks like this year has started off with a bang. I hope it is a sign of things to come.
  14. On Friday I made a visit to an Atlanta area gem/mineral/fossil show. Generally I have poor luck at these shows, in large part because there are only a couple of dealers with fossils. This trip was different. One of the dealers was selling some items from an old collection. Most of what I bought was exciting to me because they are species I have wanted for a long time, for one reason or another. First up is a nice (to me at least) New Jersey Tiassic coelocanth, Diplurus newarki (I think the genus might have changed but Diplurus is OK for now). The dealer thought it was just a skull so it was very cheap, as the rock is very black and it was hard to see the skeleton in the room lighting. I used the flashlight on my phone to give oblique light and was very happy at what I saw! He also had some ammonites I was excited to see. Two are Triassic, a Ceratites nodosus and an Acanthoceratites spinosum from Germany. I collected a Ceratites when I was a kid (about 10) living in Germany, but it broke and all I have left is a piece. I've wanted a better specimen for roughly the last 50 years! I started to clean out the inner whorls on the Acanthoceratites but that will take quite a while. There was a third ammonite that was labeled as another Triassic species, but when I got home I recognized that it is actually a Placenticeras, a Late Cretaceous genus. I am not sure of the species and the preservation is different from the North American sites I know about, so I suspect it might be from a European source. I'll post more photos in the Fossil ID thread to see if anyone recognizes it. I also scored a trilobite I've wanted forever, an Elliposocephalus hoffi. Not because it is especially pretty, but because it is representative of the Chechosolakian Cambrian that is so important in trilobite lore. I also grabbed a nice Calymene celebra. Last up for now is an OK shrimp from Lebanon. The body is all authentic, but I'm not 100% sure about the appendages. It's pretty nice though so I like it. There are a few other little things but the above is enough for now. When I got home a box of New Mexico ammonites from the Christmas auction was waiting for me, which made a good day even better! Don
  15. On Monday I went on a little trip to one of my top secret places to fossil hunt on the shores of Lake Michigan. It's a small beach in Northeastern Cook County, Illinois which I've always found lots of Silurian aged fossils. (1) This trip was no different!! https://silurian-reef.fieldmuseum.org/narrative/392 I found a large amount of small but pretty interesting Silurian fossils which demonstrate the diversity of reef supported aquatic life in the Chicago land area 444 to 419 million year ago during the Silurian era! (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20)
  16. This important new paper from Allart Van Viersen and Gerry Kloc @GerryK should cause an indeterminable number of revised labels around the globe! Hollardops mesocristatus (Le Maître, 1952) has been restricted to the holotype from the Chefar el Ahmar Formation, Algeria. "The replacement of the unidentifiable name-bearing type of H. mesocristatus with the poorly preserved paratype of evenly imprecise geographic and stratigraphic provenance would be pointless. Therefore, we prefer to restrict H. mesocristatus to the holotype. This is a rigorous measure but one that enables the objective recognition of distinct species, albeit with the knowledge that one of these might potentially belong to H. mesocristatus when future collections at the type locality are conducted. Still, that would require the near-impossible identification of the specific bank that the holotype was extracted from as well as sufficient specimens to span a range of holaspid instars, in order to validate an unambiguous relationship with the type." This is the revised and updated list of the valid species from Morocco: Hollardops aithassainorum – Chatterton, Fortey, Brett, Gibb & McKellar, 2006 (lower Eifelian, Morocco) Hollardops angustifrons – Van Viersen & Kloc, 2022 (upper Emsian, Morocco) Hollardops boudibensis – Morzadec, 1997 (upper Emsian, Morocco) Hollardops burtandmimiae – (Lieberman & Kloc, 1997)(upper Emsian?, Morocco) Hollardops hyfinkeli (Lieberman & Kloc, 1997) (upper Emsian?, Morocco) Hollardops klugi – Van Viersen & Kloc, 2022 (lower Emsian, Morocco) Hollardops kyriarchos – Van Viersen & Kloc, 2022 (upper Emsian, Morocco) Hollardops luscus – Van Viersen & Kloc, 2022 (upper Emsian, Morocco) Hollardops multatuli – Van Viersen & Kloc, 2022 (upper Emsian, Morocco) Van Viersen, A.P., Kloc, G.J., 2022 Functional Morphology, Coaptation and Palaeoecology of Hollardops (Trilobita, Acastidae), With Descriptions of New Species and Two New Genera from the Devonian of Morocco. Geologica Belgica, 25(3-4):99-144 PDF LINK ************************************************************************************* Chatterton, B.D.E., Fortey, R.A., Brett, K.D., Gibb, S.L., McKellar, R.C. 2006 Trilobites from the Upper Lower to Middle Devonian Timrhanrhart Formation, Jbel Gara et Zguilma, Southern Morocco. Palaeontographica Canadiana, 25:1-177 PDF LINK Le Maître, D. 1952 La Faune du Dévonien Inférieur et Moyen de la Saoura et des Abords de l'Erg Djemel (Sud-Oranais). [The Fauna of the Lower and Middle Devonian Saoura and the Surroundings of Erg Djemel (South-Oran).] Materiaux pour la Carte Géologique de l'Algérie, 1re Série, Paléontologie, 12:1-170 Lieberman, B.S., Kloc, G.J. 1997 Evolutionary Biogeographic Patterns in the Asteropyginae (Trilobita, Devonian) Delo, 1935. American Museum of Natural History, Bulletin, 232:1-127 PDF LINK Morzadec, P. 1997 Les Trilobites Asteropyginae du Dévonien de l'Ougarta (Algérie). [Asteropyginae Trilobites from the Devonian of the Ougarta (Algeria).] Palaeontographica Abt.A, 244:143-158
  17. Day Two ; Locality Two (or Seven if you include Day One) Prepping and Retail, Erfoud, Morocco. 20th February 2019 Erfoud town itself is famous for its beautiful fossils, its skilled fossil preppers and also for its wide variety of fakes, composites, good and bad repair jobs and utter frankenfossils. A large percentage of fossils from Morocco that are available in shops and on the internet the world over originate from here or pass through the place. Fossils are sent here for prepping from all over the south and then sent from here everywhere in the country and abroad. There are many little shops, prepping centres with huge attached shops and 'museums which are really pretty much just shops as well. Top Tip :The prices here are about ten times the price of the prices in the little shacks on the edge of town or elsewhere in Morocco, but haggling can reduce the cost significantly. Many places have 'fixed' prices, but they're actually always negotiable. This time, we went to the one my friend Anouar, who is a tour guide, takes his tourists and I was asked politely not to accuse the owners and chap who'd show us around and do the chat, of having fakes or wrong info, so i had to bite my lip. We asked if it was okay to take photos and they said yes, which I was surprised about, but I guess it was because Anouar was going to use photos for his own purposes and this would involve advertising the shop. Top Tip : You will see a lot of fixed prices in Moroccan Dirham in the pieces and shelves. Divide by ten to have a price in US dollars. Because we were with Anouar, we were told everything is 50% of the marked price, but I suspect they often do this anyway, "Special Berber prices, today only". I've heard that before. And you can still haggle to get something way under that 50% and you just know they'll still be making a good profit. I didn't buy anything. Little local stores are more my line anyway - I rarely shop in supermarkets. Here is the entrance where you can see huge plates ready for prepping and polishing, some have been cut into pieces and they glued back together it seems to me, I know this happens with the crinoid beds, so i guess it's true of the orthocerid and goniatite stuff too. Some just look cobbled together because of the circular saw marks when cutting out upper layers.With these, polishing will remove the grid lines. These sheets are from the local area and contain the goniatites and orthoconic nautiloids we were walking on earlier, but from a better quality, less eroded and distorted source. Famennian, Upper Devonian, I think. This photo shows one of the trenches they dig to reach the best quality material, similar to the ones i was walking along earlier this day : Below, somebody walking on the slabs and some maps of the the world at different times in it's past, showing continental drift. : Notice these are not the famous black orthocerid marbles that come from elsewhere. The picture of Spinosaurus is a bit misleading, as you all know, it's not found in these marbles or in the Erfoud area. In fact there is very little Kem Kem material available here these days, though there was in the past. I suspect the Kem Kem area probably has it's own facillities nowadays.
  18. HannahB

    trilobite species identification

    can anyone help me identify this trilobite? it will soon be mine but it was mislabelled as Morocconites malladoides which it’s certainly isn’t. have been told it might be a Reedops cephalotes
  19. I've recently been looking over the geologic formations in Illinois and I found one that's a bit interesting - it's a Cambrian period outcrop but it seems to be a bit small, only found in parts of Ogle and Lee County, Illinois. http://ebeltz.net/firstfam/1stfam.html https://www.osti.gov/servlets/purl/1202269 https://ilstratwiki.web.illinois.edu/index.php/Cambrian_System I haven't heard of a lot of fossils coming from this area so I'm wondering if anyone's been fossil hunting in that region of Illinois before and how common are Cambrian Fossils from Illinois's Ogle and Lee Counties?
  20. Here is a thread to share some of your rarest partials that if whole would've been incredible specimens, but you know how it is sometimes... Yet they still amazing to own a piece of. I will start off by sharing a piece of the tail of a Probolichas Kristiae, an incredibly unique looking rare lichid trilobite from Oklahoma that would've of been incredible if whole of course yet this piece still has amazing detail and I am more that happy to own
  21. GreatHoatzin

    Trilobite ID

    I was hoping someone could identify these two trilobites. I’ve had them as long as I can remember but I never got them ID’d and I’m terrible with trilobites. I have no information on the time period or the location. If higher quality photos are needed I can take them.
  22. It's been a long while since I've posted on here. I haven't been able to collect much lately, but I recently went out to some new haunts and came back with some pretty intriguing stuff I'll hopefully get to follow up on later. I'll start off with an interesting discovery I've had recently. The outcrop exposes rocks stretching from the upper(?) Brallier Formation to the middle(?) Foreknobs Formation. Although I tried searching in the past for brittle star trace fossils, I was mostly unsuccessful in this regard, and over time my interest in it shifted to the much more fossiliferous beds of the Foreknobs (formerly Chemung) Formation. A couple of years ago I posted about finding a fish bone in a boulder next to the outcrop, as well as pointing out I found some potential teeth. Going over my posts, that finding intrigued me so I dug deeper into the presence (or lack thereof) of fish remains in the upper Devonian strata of the region. What I came up with was an 1887 report of the Genesee Shale from New York, an upper Devonian formation roughly analogous to the Scherr (and possibly the lower Foreknobs by the sound of it, it's all rather ambiguous) in Maryland. The authors noted multiple occurrences of fish bones and isolated teeth in sandstone and "fine pebble conglomerate"...similar in description to the rocks of my own outcrop. Coupled with the knowledge of possible fish remains I found previously I decided it'd be worth it to give the outcrop a more thorough look over, this time concentrating instead on the conglomerate facies and ignoring the shale. What I discovered has so far been fairly interesting. As I stated previously the outcrop exposes parts of the Brallier and Foreknobs Formations, including several dozen feet of shale and siltstone in the Foreknobs grading into upper siltstone and sandstone beds closer to the axis of the syncline. Towards the top of the exposed section of the Foreknobs is a bed several inches thick of hard, pebbly conglomerate. After some searching the silty shale above and below the bed is mostly unfossiliferous, although local profusions in brachiopods, crinoids, and other creatures are present. The conglomerate, however, is densely fossiliferous to the point that it forms a veritable coquina in parts running for several feet along the exposure. Because the conglomerate is so hard (made up of quartzose pebbles and sand), and the underlying and overlying beds made of much softer shale and silty rock, the conglomerate is poorly exposed outside of the exposure wall, forming something of a canopy between it and the less resistant layers. It is covered in part by a dense layer of talus from the overlying beds, likewise obscuring part of the exposure. Luckily, however, a few boulders have eroded out from the cut and are free on the ground to examine, and a few loose pieces weathered from the boulders are present around those. In these rocks I have found one chunk of blueish-white fish bone(?), and several possible tooth fragments. I recently examined the outcrop wall looking for more bone/teeth still present in the outcrop, and discovered part of a fish tooth(?) exposed slightly above one of the boulders, and similar looking black enamel(?) specks that could be fish derivatives. They are distinguished from the quartz pebbles by their shiny black appearance, whereas the quartz is mostly lighter gray and translucent. Is this a possible bone bed in the Foreknobs Formation? More scouting is of course needed, but there's a strong possibility in my opinion that, at the minimum, this conglomerate layer is a decent source of fragmentary Devonian fish remains. Note the blueish tint to the fossil. This possible bone fragment was found in a boulder of quartzose, pebbly conglomerate in the middle-upper Foreknobs Formation (Famennian). Note the associated fauna of crinoid and brachiopod fragments. Crinoid stem fragments in particular are extremely common, comprising a large part of the conglomerate "pebbles." This boulder is derived from a layer above a Cyrtospirifer disjunctus bearing shale, indicating it's Chemung age.
  23. Hi all Just a quick question , I have been very interested in the material from Mazon Creek since I won a great auction lot from Ralph that included a few fine specimens . While looking today online I spotted a trilobite pygidium that was labelled Mazon Creek it looks like the right type of siderite concretions but it could be from some where else . So what do we think? I don’t think they was native to Mazon creek but maybe transported there by floods ?
  24. 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
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