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Found 96 results

  1. Good morning folks. I have a Dolorthocera pseudorthocerid, nautiloid cephalopod. It's Carboniferous period from Serpuhovian Stage, Brontsy quarry, Kaluga region of Russia. Can anyone confirm the ID or provide a link where I can perform some additional research? Thanks in advance.
  2. Here are some Nautiloids that I collected from the Eocene, Nanjemoy Formation of Maryland. I believe that they are Hercoglossa Tuomeyi. I’ve found lots of fragments but these are the larger, more complete specimens. Most of the outermost shell material is gone with the exception of the large specimen back, right which still has most of it. The large specimen center, back measures 12”x10”x6” and weighs 35 pounds. I about broke my back lugging it more than a mile off the beach. I’m not really sure that the small specimen on the stand in the center, back is the same species as it does seem to have different features from the others. Marco Sr.
  3. 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! This one is about 3cm in diameter and 7.5 cm length. Number 8 in first pic. There are also a couple that have this twisting pattern on the outside. This one is about 5cm in diameter and 3.5 in length. Number 4 in first pic. Possible Siphuncle? 1 cm in diameter. Number 7.
  4. 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?
  5. ID confirmation request

    Hi, does someone know if this imprint is from a shell, ammonite or nautilus?
  6. prepped moroccan nautiloid?

    hi guys, every one knows and recognises probably the most commonly sold fossil in the world, the "orthoceras" though not actually this species, they are always ground down and i was wondering whether anyone had some actually properly prepared pieces that show enough details to be identified?
  7. Greetings from Texas! So I have posted previously about my hunt to find all the species of Echinoids in Texas. Well, I am also on the same fossil quest for all the ammonites, nautiloids, baculites, turrilites and belemnites I can find as well! When looking for one, you might as well look for the other! So I thought I'd start a post of my ongoing hunt for all the cephalopods. I'll start with some of my finds from the recent past and I am still working on my identifications, so please do assist if you notice the wrong ID! Thanks and also post some of your finds! I'd love to see 'em! Start with some of my "backyard" finds (within 20 min drive). I am lucky to have quite a few hunting locals near me, so I occasionally find these lovely little Budaiceras from the Buda formation. I don't think this is Budaiceras, but i actually DID find it in my backyard.....in the creek behind my house, which is Edwards Formation, I believe. Not a great specimen, but the fact I found it in my actual backyard makes it special to me.. . I also find quite a few Engonoeras near me - usually small but decently preserved - I am fairly certain it is from the Glen Rose Formation: Another nice little section from a different spot, also Glen Rose: Best one, however, was from Harker Heights (which is a bit over an hour away) in the Walnut Formation: That'll do for now. More to come in the near future!
  8. Hi we've found these fossils in buffalo ny and based only on google searches we see resemblance with eurepterids as well as straight shelled nautiloids. Any help would be greatly appreciated. The photos shown are all different fossils I have them labeled a through c to make identification discussions easier. Thankyou in advance, we're learning!
  9. I have this nautiloid/ammonite that I *think* comes from the "Bear Paw" locality of Montana (Cretaceous) - or at least that is the info I have for it. Can anyone tell me if this is correct, and what species/type of fossil ammonite this is? Thanks!
  10. Hy guys, So I got this nautiloid in a wholesale and when I got home I realized this kind of small "hole" in the inner part of the shell. My doubt is if this is reminiscent of the siphuncle or it was made by someone. What do you think?
  11. Nautiloid Cymatoceras.JPG

    From the album Central Texas Fossils

    Nautiloids Cymatoceras Found in Hays County
  12. Nautiloid - cymatoceras.JPG

    From the album Central Texas Fossils

    Nautiloid Cymatoceras Found in Hays County
  13. Fossil

    Hello guys I’m not 100% yet weather this is a amonite or nautiloid as it’s has like line prints length ways instead of across and it swirls
  14. Orthoceras?

    Was given to me as a gift. Not sure where from.
  15. Ammonite or Nautiloid?

    I was given this as a gift as a child. I gave the other half to a friend some time ago. Here Are the Pictures my dudes:
  16. And another from Jacksboro

    Here is another I found at Lost Creek in Jacksboro, TX, Looking for ID help.
  17. from Jacksboro, TX

    Found this first one in Jacksboro, TX, Lost Creek Dam. Finis Shale Formation, Pennsylvanian. Would like to identify. Gastrioceras? or maybe Vidrioceras?
  18. Nautiloid? Ordovician, NT, Australia

    Hello everyone! I've been examining a fossil I found a short while back and wanted to try and confirm my suspicions that it is a Orthoconic Nautiloid. Interested to hear some opinions from those more knowledgeable than I. So far I've been struggling to find good resources describing the different species found in this formation, it seems the work of John Laurie should possibly be my focus. The diameter of the possible siphuncle seems unusually large and positioned in very close proximity to the outer shell. I seem to remember reading something about the siphuncle moving closer to the outer shell as the nautiloid ages. The fossil was found in Maloney Creek, NT, Australia and comes from the Horn Valley Siltstone, early to middle Ordovician (487 Ma - 468 Ma). Feel free to ask for any additional photo angles, measurements or further information on the location. I also have a number of specimens from the same location that are clearly straight-shelled nautiloids, but likely another species.
  19. Cephalopod ID

    Hey guys, I am fairly certain that this is a straight-shelled nautiloid cephlapod but this one is different from others I find. I find a lot of fragments from cephlapods in Cincinnati with only a few segments. This one seems like the whole shell, though it is 7.5 centimeters in length. Also one side has a bunch of holes which I am curious about. Any more info on this specimen would be much appreciated. Found in a creek so it has probably been weathered a lot. These next pictures are the top and bottom, (i dont know why they are flipped to the left)
  20. Found two interesting cephalapods on the Blanco River in Central Texas. I have never found nautiloids in my area, but I looked up as much info as I could find, but only two are found in Cretaceous. So I am thinking this is a Cymatoceras? Perhaps Cimomia Angustus? That was one I found online that looked a bit like this one. Any help of ID would be appreciated. The little grey imbedded ammonite is also unusual to me since it is so small, most of what I have found are much much larger.
  21. Fossil ID

    Hello, we are new to this forum so hope we posted this in the correct place. We found the fossil in the photo below in the East Fork of the Little Miami River in Claremont county Ohio. It was just laying there complete In clay in shallow water. It is about 2 feet in length. The underside (not shown) has remnants of what appear to be feet. To help it crawl. We are not sure what it is, anything about it, or if the size of it is common or extraordinary in length. Any information you can offer would be most appreciated Thanks in advance, Linda&Tim in Cincinnati Ohio
  22. I only recently got into collecting after being out hiking and literally tripping over a large coral fossil a couple years ago and the hunt has been on since! SO much to learn! I wish I'd have started 30 or 40 years ago. I haven't posted any of my finds as I've been trying learn a little first and see if I could identify some of these. I think I've got some of them and others I haven't found a name for, so I hope you don't mind me dumping several on you. Are all these Receptaculites Oweni? They were found in the Galena dolomite in the Dubuque area in what I think is the Fairplay member of the Dunleith. (30 or 40 feet above river level) The third photo of the slightly smaller one was found in a drainage ravine so I can't be sure the layer it came from, but I don't believe it had been carried very far if at all. It was 30 or 40 feet higher than the other two. Is the last one Ischadites Iowensis or another Oweni? Is there a good guide to these somewhere? These next are of a nautiloid I haven't found the name for. This was found in the Guttenburg member of the Decorah also in the Dubuque area near river level. It was in the outcrop about a foot above the top of what I think is the Spechts Ferry member. I also found quite a few Rafinesquina brachiopods laying around in the talus and the pygidiums of a couple different trilobite. I think one is Gabricerarus Mifflenensis and the other Isotelus? It looks a lot like the ones in the last photos of what I'm pretty sure are some Isotelus Iowensis I found near Elgin, IA). Are these Isotelus Iowensis? These were found near Elgin, IA in what I think is the Elgin member of the Maquoketa. About a foot above the Turkey river that day. You can actually make out what I assume are compound eyes? Being kind of new to this I'm amazed at the detail you can still see in some of these for something so old. I haven't found the name of these cephalopods yet either. They were found the same day and not far from the trilobites in Elgin and about 5 or 6 feet higher in the rock layer.
  23. Nautiloid Cephalopod?

    Found in a creek East Fork Lake in Cincinnati. 14 centimeters in length. It looked to me like a nautiloid because of its shape but it doesn't have any of the distinctive markings like a nautiloid does. Someone suggested that it could be a cast. You can see the imprint of the rest of the fossil. What it looks like now after I broke the rest of the rock apart Opening of the cone shape, looks like a brachiopod? Nautiloid Cephalopod markings I'm talking about:
  24. Total Mystery

    This one is a mystery. My local rock shop owner got this in a collection he recently purchased. Any ideas?
  25. Hello everyone, especially those to whom I have sent chunks of Georgian Bay Formation (Upper Ordovician) orthoconic nautiloids! @JohnBrewer @minnbuckeye @WhodamanHD @VTinNorthAB @Kasia @cheney416 @David in Japan @thelivingdead531 @Tidgy's Dad @Ludwigia @joshuajbelanger Eric, I don't think I sent you any, but just in case... @Wrangellian @DLB - I don't think I sent you any, either, but - again - just in case... (By the way - do you need/want any more fossils for your boys?) I think I've been spelling the name of the orthoconic nautiloid incorrectly!!! I've been spelling it as Treptoceras crebiseptum BUT I've been omitting the "r" that's supposed to come after the "b" in the species name SO the correct spelling should be Treptoceras crebriseptum. I'm SO sorry for the error - I hope you can all forgive me Thanks, Monica