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Found 1,249 results

  1. ammonite ID thread

    Hi guys, hope everyone is doing well. In my free time I've been working on properly labeling my fossils. Now, not being an expert, I'm not quite sure of all the ID's but I'm not about to flood the forum with ID requests. So here are some of the ammonites I'm least sure about. If anyone could provide any more information on formations and ages etc. that would be great! Even if its hard to acquire more info on them, it will be a fun opportunity to showcase some of my ammonites. 1. 2. 3.darellia semicostata, burton bradstock 4.label says Dichotomoceras bifurcatoides from the middle oxfordian of poitiers, france, looks like persiphinctes spp to me though
  2. Dear TFF, I have these two Callovian ammonites for exchange. The first is on matrix and wood wax has been applied to it. I would like paleozoic material (especially devonian invertebrates) for my teaching collection, but I am open to other proposals. Thank you.
  3. Rock or Ammonite?

    Found this while I was fishing. Can't tell if it's an ammonite or a rock. It does have that spiral pattern very slightly. Plus, when I turn it on its side, it looks like there's some indication of a small chamber. What's your input? Ammonite or rock?
  4. Hello, Firstly, I would like to thank everyone for their continued support in answering questions for someone who has now ventured into fossil hunting and procurement. I purchased the attached ammonite pair some time ago and I would like to get advice on quality and possible additional restoration I can do on my own. I’m not sure if I can get the dull face better polished. I’m also not sure what to do with the external sides. Is this also a very good quality specimen and therefore, I should put further interest in getting the pair in better Condition? That may be a loaded question as it may be simply a matter of opinion but I’m just interested in professionals’ advice.
  5. Ammonite Turrilites

    From the album Central Texas Fossils

    Ammonite Turrilites - Edwards Formation
  6. Ammonite Engonoceras gibbosum

    From the album Central Texas Fossils

    Ammonite Engonoceras gibbosum - Walnut Formation
  7. Ammonite Budaiceras

    From the album Central Texas Fossils

    Ammonite Budaiceras - Edwards Formation
  8. Ammonite Baculite

    From the album Central Texas Fossils

    Ammonite Baculites - Austin Chalk Formation
  9. Ammonite

    From the album North Sulfur River

  10. Ammonite Mortoniceras

    From the album Central Texas Fossils

    Cretaceous Ammonite Mortoniceras - Georgetown Formation
  11. Ammonite Pachydiscus travisi

    From the album Central Texas Fossils

    Cretaceous Ammonite Pachydiscus travisi - Austin Chalk Formation 3 inches diameter
  12. Ammonite Eopachydiscus

    From the album Central Texas Fossils

    Cretaceous Ammonite Eopachydiscus - Main Street Formation (?) 18 inches diameter
  13. Ammonite Oxytropidoceras

    From the album Central Texas Fossils

    Cretaceous Ammonite Oxytropidoceras - Walnut Formation 4 inches diameter
  14. Ammonite Mariella .jpg

    From the album Central Texas Fossils

    Cretaceous Ammonite Mariella - Del Rio Formation 1 inch
  15. ammonite engonoceras .JPG

    From the album Central Texas Fossils

    Cretaceous Ammonite Engoniceras - Walnut Formation
  16. Hey all. Couple questions about North Sulfur River Tx. Why can I pull one gastropod that will be black (one species) and then within arms reach (another species) will be red? Both semi covered in the red matrix. Has anyone found a large complete red ammonite? I find pieces of large ammonites but always just pieces. I have found a complete Pachydiscus that is around 6 inches in diameter. That is the largest complete one I have found. Thanks for any help. Still learning this stuff.
  17. NSR, May 20th

    I made a hike down the North Sulfur River bottom today, and as usual, there were fun things to be found. There are shell fragments everywhere in the shale at NSR, but most of them aren't from ammonites like this one.
  18. This concretion was actually from a fossil trip last year. Its two ammonites in one rock but the bigger ammo has half of its beak right in front of the appature. Amazing. These are known as Rhaeboceras halli and are from the Bearpaw Shales of eastern Montana. He brought it over to my garage and wants me to 'clean' it up. RB
  19. Ammonites and gastropods.

    Hello, sorry to be a pain with all these IDs. I thought itd be easier if I just put all of them in one post. All were found in Northamptonshire, UK. Which is mostly Jurassic in age. Sorry there's no scale, I couldn't find my ruler anywhere. I'll have to upload more images below this. Its been quite some time since I've found ammonites. The land had just been rotavated, and aside from the ammonites, I found some Bivalves, and two golf balls buried. Thanks. These are the first two ammonites, I tried to ID them, but they are incomplete, so it was a difficulty, the closest I think it looks like is Harpoceras. Each are about two centimetres (about 0.8 inches). I saw a neighbour had a very similar rock with two larger ammonites on them that was being used to hold a fence down.
  20. Hi everyone, I just got into fossil collecting and for some reason Ammonites have my attention. I have a small background in beetle taxonomy, so I was curious if there is a dichotomous key for North American Ammonites? Are dichotomous keys even a thing for fossils? Is there any comprehensive books or guides for Ammonites in English? All I am aware of is the "Treasties on Invertebrate Paleontology" and the fourm search function isn't helping me out either. Thanks in advance.
  21. I justify my going out to fossil hunt right now as "exercise"! Everyone needs exercise! And I have had some really good "exercise" lately! I am to the point in my fossil collecting that it's about finding "better" specimens and the very occasional new thing (which is SO very exciting!) Two in particular have eluded me for a while : Oxytropidoceras Ammonite and Leptosalenia mexicana Echinoid. I have found partials and bits and pieces, but had been unable to find a good one...until now! All are from Texas Cretaceous . The Oxytropidoceras is not the prettiest one in the world, but it's mine and it's a whole one, so I am super happy. 4 inches diameter Fort Worth or Duck Creek Formation This little echinoid has been a real bugger to find. I'd found one, in beautiful condition, only to have it fall apart on me and I found another that is so water worn it's almost impossible to tell it's a L mexicana. So FINALLY I found a lovely one! It's not showing up as well in this photo, but it's a deep purpley grey color! 1/2 inch Walnut Formation And some other good finds - some nice crab claws! Two are unidentified (if anyone knows, please do tell!) and the other is just a nice big one, albeit a bit broken. Unknown crab claw from the Walnut formation: A small unknown crab claw from the Glen Rose Formation: And a honking big Pagurus banderiensis from the Glen Rose Formation: Plus it's always great to find some "better" fossils. Here are a few nice finds: A nice Heteraster from the Walnut Formtiaon; Plus a nice Gastropod Anchura And even a "lowly" bivalve - known as a Texas Heart: Cucullea blancoensis
  22. Hi All, All of this free time to procrastinate during isolation has made me wonder what everyone’s favourite species of prehistoric animal is. I know that there are collectors of dinosaur fossils, shark fossils, ammonites etc so am curious what everyone’s favourite species are and why. My favourite is Baryonyx, closely followed by Allosaurus. Baryonyx because I’m from the uk and it’s a super cool dinosaur. Allosaurus a close second as their teeth are probably my favourite of all Dino teeth available. Keen to know what yours are and why
  23. collecting

    Hello ,during the covid-19 a new prep , its a crioceras sp from hauterivien stage from south of France in Provence.
  24. NSR, May 1st

    I walked the North Sulfur River yesterday. I was surprised at how low the water is. There had been a 3 1/2 foot rise at the gauge downstream just a couple of days earlier, but it's obvious there has been no rain at the FM2990 bridge. There is not much water flow at all. No fresh water made me wonder how picked over it would be, but there always seems to be interesting things to be seen at NSR, so down into the river bed I went. I found these two ammonite fragments lying, half buried in sand, exactly in the position in this photo. If they are halves of the same ammonite, there is some material missing between them. These are the largest ammonite fragments I've found at NSR.
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