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Found 248 results

  1. Silurian - crinoid vertebra?

    Central PA, Mifflintown-Bloomsburg (undividied) Block collected from roadsite float. Its pretty variable, with a flaky/fissile layers alternating with slightly more cohesive ones. Lots of broken brachiopod bits. For an experiment to I dropped an unremarkable flake the size of a large coin in some vinegar and let it soak for a day. The flake had a couple brachiopod bits and I wanted to see if they would fall free or dissolve in place. The brachiopds disappeared and I was left with this (see pics). Of course I got really excited and thought I had an early fish spine, but now I think I dissolved a crinoid stem and what we see is the matrix that filled in the soft bits. What do you think? Total length is 3/4"
  2. Hi all, first post here. Central PA, Slab from roadside float from Mifflintown-Bloomsburg (undivided). A thin layer contains a lot of small (1/16" dia), flattish fossils that I think might be inarticulate brachiopods. I have a number of specimens from other parts of the exposed layers and these do not appear in any of the others. One old paper on this formation mentioned "inarticulate brachiopods". I'm new enough that I didn't know about the articulate and inarticulate division in this group, so I'm already learning stuff. Awesome. Googling some pics returned some images that kinda look like what I have. But not quite. What do you think? If not inarticulate braichiopod, what else could they be?
  3. Shrine of the Japanese trilobites

    Stocker, C., Williams, M., Oji, T., Tanaka, G., Komatsu, T. and Wallis, S., 2019. Spirits of Yokokurayama: shrine of the Japanese trilobites. Geology Today, 35(1), pp.15-19. https://onlinelibrary.wiley.com/doi/full/10.1111/gto.12255 https://www.researchgate.net/publication/330640693_Spirits_of_Yokokurayama_shrine_of_the_Japanese_trilobites Yours, Paul H.
  4. Fossils on Wheels received another generous donation to our education programs this week. TFF member @Herb sent us a box of super cool invertebrates. He sent us a diversity of fossils from the Southern US that cover a wide range of eras. These fossils will be given to students in fossil starter kits and used in hands-on activities. Herb's donation is also awesome because this pushes me to learning a lot more about invertebrate fossils. One of the best parts of teaching kids about natural history through fossil exploration is that I get to learn a lot. Good teachers learn and challenge themselves so they can challenge their students. I do not have a lot of knowledge about these types of animals but I am so excited to start learning. Among the fossils we received were- Mississippian Corals and Brachiopods from Kentucky, Crinoid stems and Silurian sponges from Tennessee, Cretaceous Gastropods from Texas, and Eocene Bivalves from Alabama. Thank you Herb for a generous donation that will get put to good use
  5. Diving Into Georgia's Silurian Seas

    Much of this past week has felt less like a winter break and more like a switch from school work to government work. It seemed like many a day this week slowly chugged along, clogged by bureaucratic paperwork, followed by some bureaucratic paperwork, topped off with...more bureaucratic paperwork. As I'm sure many of you can understand, this left me a little restless. Having only the internet to provide you much of any entertainment will only last you so long. Thus, I decided today would need some much-needed paleo zest. A couple of days back I was scanning through Fossil hunting videos on YouTube, looking for new things to do (or watching the Ditch Weasel's Megalodon tooth hunting videos for the billionth time). Then I came across a video I hadn't watched in a long time, about a mysterious GA site I had never been to before. With a quick look in the description and comment section, I learned that it was near Dalton. With this in mind, I Googled "Dalton Fossils". To my surprise, the first result was a trip report @Nimravis wrote a little more than a year ago: With GPS coordinates now saved to Google Maps, My step grandpa and I headed out, partly guided by my phone's robotic voice. We arrived at the site, greeted by a thick fog: I put on waterproof boots, grabbed my hammer and chisel, and crossed the street to begin my search for Silurian treasures from the Red Mountain Formation. When we crossed the street, going around the leftmost portion of the wall (parking lot perspective), We heard a rustling off to the right. A decent sized Boulder slid down from the top of the hill, taking a decent chunk of dirt with it. In the end, it was a relatively small event, but we kept an eye out in case of other potential instabilities in the rock face. At entrance, facing the direction the mine lankslide occured Full attention on finding fossils, it didn't take very long at all to find some brachiopod plates.
  6. Ostracod or something else?

    Hi, I have another mysterious fossil. Silurian. Ostracod? Any ideas? (Bottom right): Side View:
  7. HI, Curious what this could be? It measures only 1mm found in Silurian deposit northern Illinois embedded in matrix along with pelecypods and gastropods. It looks like it could possibly be a tiny shark tooth, but I don't know anything about shark teeth. Are teeth ever found that small? At first thought maybe conodont but doesn't really have the caramel sheen to it. Any ideas? Any help appreciated.
  8. Othoceras Sp - Noth West of France.

    From the album Best of 2018 finds - a year in review

    Othoceras Sp from North West of France (silurian)
  9. Didymograptidae indet plate

    From the album Best of 2018 finds - a year in review

    A graptolithes (Didymograptidae indet) plate from north west of France - Silurian.
  10. Sam Lawrence Park, Hamilton, Ontario

    I was looking back at my pictures I took in the summer and I realized I forgot to share pics of a park I discovered up on Hamilton’s Mountain with nice exposures of rock formations of the Niagara Escarpment. The park is called the Sam Lawrence Park at Concession Street which is just south of Hamilton’s downtown core. The park has a walk where one can see a nice view of the downtown Hamilton skyline. This walk at Arkledun Avenue is a popular photography destination and quite breath-taking on a good day.
  11. Silurian Sponge? Coral?

    Hello, I can't seem to ID this fossil found in Silurian reef rock, Chicago area. I made some slices. Any help appreciated.
  12. Stromatoporoid?

    New to the Forum! Just a rookie looking for some help. This fossil was found just outside of Defiance, Ohio 70 yrs ago. The rock was found on the surface of a farm field, in an area not plowed. Rock is approx 8 inches in length, with its entire surface uniformly covered in bumps. Under magnification, very small crustacean type organisms can be seen embedded in the rock. At first, I thought it may be a stromatoporoid, but bumps on surface may not have enough of a conical shape....? Looking for advice on where in N.W. Ohio this could be taken for ID, if needed.
  13. From the album The Waldron Shale

    Eucalyptocrinites elrodi Middle Silurian, Waldron Shale Formation, Shelby County, Indiana. Slab measures 10" x 7", specimen with stem and holdfast measures 6" and single crown 2.75" Collected and prepared by Ken Karns
  14. https://www.sciencedaily.com/releases/2019/01/190116111008.htm
  15. Fossil (maybe) in chert

    Okay, this is way, way out there, but it's a maybe. I am sitting on the fence for going real or mother nature. I was strolling around the mountains today. On an Silurian plateau I spied this piece of cherty material with what may or may not be a small crinoid. It is a bit banged up, kind of rusty looking, but seems like an immature crinoid??? Otherwise, a very interesting want-to-be. Material is missing from some areas which would have been helpful and it wraps around the edge of the rock making it challenging to photograph. On the entire chunk of rock there are no other features of note. Size from 8 on the ruler as it wraps around the other side comes out to about 35mm
  16. Graptolites non det.

    From the album Invertebrates

    Graptolites non det. Silurian Vogtland Saxony Germany
  17. Graptolites non det.

    From the album Invertebrates

    Graptolites non det. Silurian Vogtland Saxony Germany
  18. Graptolite non det.

    From the album Invertebrates

    Graptolite non det. Silurian Vogtland Saxony Germany
  19. Graptolite "Pneumatocyst"

    From the album Invertebrates

    Graptolite non det "Pneumatocyst" Silurian Altmannsgrün Saxonia Germany The pneumatocyst was interpreted by Ruedemann, 1895 as a flotation device and indication of a planktic life style of the graptolites.
  20. Very small outcrops northwest of Graz are perhaps the richest site of Silurian fossils in Styria. There may be other sites with somewhat older macrofossils in Styria, but not as rich. The outcrops are part of the Palaeozoic of Graz, a thrust sheet within the Eastern Alps, composed or Silurian to Pennsylvanian sediments. It consists of three separate nappes, the outcrop and fossils presented here belong to the Eggenfeld-member of the Kötschberg-formation within the Rannach nappe. Geological map of Styria with the Palaeozoic of Graz situated north of Graz. The red X is the location of the fossil site. Geological and structural map of the Palaeozoic of Graz. Note that the colors of the Rannach facies and Hochlantsch facies have been accidentally interchanged, the red X is the location of the fossil site. From Gasser et al. (2009). Stratigraphy and facies distribution of the Palaeozoic of Graz. Kötschberg-formation is Nr. 10 (red X), thicknesses of formations are not to scale. From Gasser et al. (2009). The age of the Eggenfeld-member is, based on conodont data, upper Silurian (Ludlow, Pridoli) to lowermost Devonian (Lochkovian). What´s special about this site is the abundance of orthocerids in some only a few dm thick layers of grey to brown dolomite and dolomitic limestone that are intercalated with tuffitic rocks. And also somewhat special is the number of papers dealing with these very small and poor outcrops. The occurrence of orthocerids is known since the 1950ies, a good up-to-date (2010) summary is this paper, it mentions 16(!) nautiloid taxa, most of them orthocerids. Its in English and includes pics of fossils and a stratigraphic section: GPZ_Eggenfeld_Histon_2010.pdf These are the seven nautiloid genera figured in this paper, no species assignment was made.
  21. Today I made a quick stop on Dug Gap Mountain Road in Dalton, Georgia and did a little collecting in the Lower Silurian Red Mountain Formation. At this location you find imprints of shells, though I cannot find any information on them.
  22. problematica/incertae sedis from Europe

    THES about 10 MB generally quoted as being "unpublished" Fredrik Jerre: Silurian Conulariids from the Visby Beds,Gotland Examensarbeten I Geologi vid Lunds Univeristet,1988/n.25 recommended
  23. Notice

    Notice preliminaire Joachim Barrande:Sur le Systeme Silurien et les Trilobites de Boheme Text only,about 6,6 MB LINK Systeme Silurien du Centre de la Boheme Premiere partie:Recherches paleontologiques vol 1: planches Crustacees etTrilobites (plates/Atlas)..........ABOUT 20,8 MB systemesilurienbarrande supplement au volume 1: Trilobites,crustacees diverses et Poissons size: about 15,5 Mb LEGAL STATUS:out of copyright aetiology(why go look for it?): total annoyance at seeing this thing cited so often and not having it For a mid-nineteenth century monograph ,this is still quite often cited. Needless to say that the taxonomy should be viewed with some circumspection some reasons why these are famous volumes:
  24. I have a question about the different time periods, I live in Southeast Indiana, Whitewater river area, within the Cincinnati region and Ordovician period. Having a hard time understanding this, will I only find Ordovician period fossils or could I find later period fossils like Silurian fossils? And why? You all have been so helpful and I appreciate it. Linda
  25. Hello kind folks of the fossil forum, I recently had the opportunity to take photos of some of the more rare/unknown fossils found in the fiddlers green member of the Bertie group. All these fossils came from Lang’s quarry in Ilion, New York and are not Eurypterids. I was given permission from Al Lang himself to post these photos. These are from his personal collection. He does like his privacy and doesn’t like people showing up out of the blue. I’m lucky to have met him and received an invitation. I’ll stress this was a huge stroke of luck and he doesn’t often have or want visitors. He was kind enough to let me show these photos, so let’s appreciate this opportunity together. Some of these fossils have been seen by very few people. I was also allowed to take photos of his Dolichopterous specimens which are also exceedingly rare but they will go under a different category on the forum at another time. Now some of these can be found in ontario at the ridgemount quarry but keep in mind these are from a different layer than the Eurypterids found in central New York. The stratigraphy is slightly different across the state. Either way, at least some of these may be described....some maybe not? Photos to come. im going to post the pics together with 2-3 grouped together if they are the same and I’ll separate photos if they are loners. This will make it easier for people to quote photos.