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  1. From the album: Fossildude's Finds

    Middle Devonian Mahantango Formation. Swopes Farm/Turbotsville borrow pit. Turbotsville, PA.

    © 2021 Tim Jones

  2. This is Isorthoceras sociale (Hall, 1877) from the Ordovician Elgin member of the Maquoketa from the well known Graf, Iowa location. They exhibit unusual preservation, including nacre and hollow camerae. According to Invertebrate Fossils (1952) by Moore, et al,, shells of nautiloids have an inner annulus layer, middle nacreous layer and outer porcelaneous layer. Is the circular pitted texture on the outside then the remnant of the porcelaneous layer of the shell or some sort of epibiont like a bryozoan? Plate 220 of Shimer and Shrock's Index Fossils o
  3. Mainefossils

    Orthocone nautiloid

    Fossil forum, This is another fossil from the Leighton formation. It is a completely undamaged orthocone nautiloid. I think it is the same species that I showed earlier in the possible fossil coral post, but I am not sure. The external mold has the same grooves, but the internal mold is divided into two sides, each with bumps. Is this normal for a nautiloid fossil? Any help would be appreciated. Here are some pictures of it (internal mold on the left, external mold on the right):
  4. Samurai

    Orthocone Nautiloid

    From the album: Missouri Ammonites and Nautiloids

    Found this almost a year ago at this point
  5. shrimp

    Shrimp's collection

    Hello everyone I have a pretty small collection, so I thought why not share it since it would only take a few posts? First up, these are my only self collected fossils. From walking along the Humber river in Etobicoke, which puts them in the Georgian Bay formation I believe. I would love some more information! Sweet little orthocone is why I took this one home. The back of the rock which shows an imprint of somebody's shell. There may be some other stuff going on in the matrix here but I've got absolutely no idea. Another orthocone with siphun
  6. Nautiloid

    3D Michelinoceras partials from DSR

    From the album: Middle Devonian in Central New York

    Michelinoceras telamon Middle Devonian Hamilton Group Moscow Formation Windom Shale Deep Springs Road Lebanon, New York Collected 7/18/20
  7. Hello. I'm working on organizing my collection and was wondering if anyone could help me with some identifications. Thanks for any help. I don't have any info on this one. I think it is a Mucrospirifer brachiopod. Can someone confirm this? Help with the species name would be appreciated. Thanks. These are crinoid stems. I don't have any further information. Does anyone know the species, where they came from, or the approximate age? Thanks. I think this is a dolphin tooth. It was found on the Ernst Ranch in Bakersfield, California. Can a
  8. Nautiloid

    Orthoconic nautiloid

    From the album: Fossils of the Upper Ordovician Lorraine Group in New York

    Orthocone cephalopod Upper Ordovician Lorraine Gr. Whetstone Gulf Fm. Jefferson County, New York Collected 11/11/19
  9. Last year while on a fishing trip in Ithaca, NY I found this as well as some brachiopods in a small outcrop of shale along a stream. I’m pretty sure it’s Devonian in age but I haven’t been able to identify the species.
  10. Manticocerasman

    Orthocone prep

    It has been a while since I've posted on the forum, so here is a prepwork from this weekend It is a late devonian orthocone, it was quite a hustle to get this out of the rock, it broke in 3 pieces during the extraction in the field. Only a part of the shell was exposed, so I took a whole lenght of matrix back hoping that it contained a whole specimen, and it did The prepwork went realy well, and even the tip of the orthocone was preserved. The 3 parts glued back together, showing only a glimps of the orthocone: clearing out the fossil:
  11. JUAN EMMANUEL

    Endoceras proteiforme

    From the album: Urban Fossils of Toronto (Georgian Bay Formation, Lower Member)

    Endoceras proteiforme, found in the Humber river area. Late Ordovician, Georgian Bay formation, Toronto, Ontario. Length is approximately 35 cm long with a nickel shown. This specimen is a portion of the whole fossil that is still to be excavated (it's just so difficult to dig out) and the remaining body of this thing is still there at the site where I got this.

    © (©)

  12. JUAN EMMANUEL

    Treptoceras crebiseptum

    From the album: Urban Fossils of Toronto (Georgian Bay Formation, Lower Member)

    The smallest complete Treptoceras crebiseptum specimen in my collection. It even has the body chamber. Length is 10 cm long. Found in the shales of the Georgian Bay formation, Lower Member at Mimico Creek in Etobicoke, Ontario, Canada. Late Ordovician.
  13. I spent yesterday trying out a location along the southwest corner of Tug Hill Plateau in Oswego County NY. There is a road cut exposure that is very weathered. Lots of crumbly mud- and silt-stone, interspersed with sandstone. I couldn’t get very low on the exposure because the river that the highway crosses was high, no shelf or margin of error to climb down. On the Rockd app, this is supposed to be late Ordovician Pulaski and Whetstone gulf, and I wanted to find trilobites. I think I found one fragile flexicalymene, Prasopora (chocolate drop bryozoan), and a big orthocone. Very few tril
  14. Manticocerasman

    Devonian cephalopod collection

    I finaly got around putting all my best cephalopods specimens that I collected over the past 4 years in the frasnian of southern Belgium on there place in the cabinets. They all come from the same location. (except an orthocone and a receptaculites from the same age but from a different spot ) most of it has already been posted in individual posts, but this gives an overal vieuw of the part of the collection on display. Enjoy al the Manticoceras, Crickites, Tornoceras, Bactrites, Orthocones and more
  15. FossilNerd

    Orthoconic Nautiloid?

    I made a trip to my new favorite Upper Ordovician (Drakes Formation) spot today (working on a field trip report ). I came across a few of these cylinders, which I believe are orthoconic nautiloids. I found them in many different sizes. Some taper as I would expect from an orthocone. However, they do not have the suture lines or septa that I am used to seeing. Some have what appears to be a possible siphuncle in the center while others do not. Here are a few pics of some of the more interesting ones. I can provide more if needed. Thoughts? Thanks in advance for any assistance!
  16. Blair County, Pennsylvania (USA) Silurian... According to the map the likely guess is Clinton Formation, but my gut on site said "Wills Creek" Anyway, what do I have here? Small straight nautiloids or Tentaculites? How do you tell them apart?
  17. I found this orthocone a while back at Arkona (devonian) and I thought it was dolorthoceras, but now I am not so sure. It has a strange mark protruding from centre of each chamber. Any help would be appreciated! d!
  18. fossilzz

    Endoceras Sp.

    From the album: Finds From the Ordovician -488 to 443 MYA-

    Section of Endoceras, from the Collingwood member of the Lindsay (Cobourg) Fm.
  19. Steve D.

    Cephalopod section?

    Need help with identification. I have a pretty strong idea that this is a weathered section of a cephalopod but I would like to be certain. Your feedback (as always) is appreciated. :)-
  20. This summer I was once again able to look for fossils near Newberry, MI in a degrading hill filled with drift. In my research recently, I came across a paper on the Collingwood formation drift in Newberry, and was excited to find exact descriptions of some of the layered rocks found there. I am including photos of one of them, split into its layers...and the orthocones revealed in thos layers. The orthocone has a very thin shell of some kind....they are always found flattened and usually with that line down the center indicating what was once rounded has been squished flat. In the 4.5 " orthoc
  21. CSimpson176

    Orthocone find

    Wanted to take advantage of the good weather and went to the creek on my farm to see if I could find anything good. The creek is located on a farm in Northern Kentucky, located in a small valley amongst the hills. As soon as I reached the creek and knelt down, I spotted this beautiful specimen and instantly recognized the shape and tapering. I can’t find any septa on it though. I find an abundance of bryozoans, brachiopods and crinoid stems. Few weeks ago, found a fragment of orthocone and had it verified on here. This is only my second and so are pretty rare on our land.
  22. CSimpson176

    Possible orthocone?

    Found this while searching the creeks located around my farm. I find a lot of bryozoans, brachiopods, crinoid stems and that’s about it. Never have found a fossil like this around here before, though I know Northern Kentucky has found orthocone fossils before. Interested in what you all think!
  23. Hi, noone will hurt my feelings if this turns out to be geological and not an orthocone cast. I was exploring for other fossils when I chanced upon 3 separate specimens of the following. They were all about the same dimensions and appearance so I decided to bring one home. What the heck it only weighed a couple of pounds. 7.5" x 3" at the widest. Elliptical shape on left end a side view
  24. UPDATE: August 20, 2013 - A new site for Wattieza - the world's oldest known tree Since posting this, the debate about "orthocone" versus "Devonian tree" has been settled. The Devonian tree experts have weighed in and confirm that these are Devonian tree shoots. They were growing in a swampy shallow marine environment similar to how modern mangroves grow. Since our original discovery - which represents an entirely and previously unknown site for Devonian Wattieza trees - my wife and I have collected more than a dozen separate fossils including some with surrounding substrate, from this sit
  25. Wrangellian

    Ontario Ordovician conular items

    I've received a couple nice Upper Ordovician additions to my collection courtesy of @JUAN EMMANUEL and I'm finally posting them now... (Thanks Juan!) First, is this Tentaculites or Cornulites? I wish I could get better pics. Manitoulin Fm, Hamilton, ON.
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