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Found 1,150 results

  1. Hematite Ammonites from Morocco

    The label supplied with these says they are from the Cretaceous, from the Atlas Mountains in Morocco. They appear to be preserved with Hematite. The squares are 0.5"x0.5" (roughly 1.3cm²). If more pics are needed for an Id I'll get them for you.
  2. Opal ammonite?

    Picked this beauty up at a local pawn shop over the weekend. I have no experience with opalized fossils, but it looks to be an opal ammonite to me?
  3. Ammonite with Crystal's....

    I spotted this broken ammonite with Crystal's forming inside... I haven't seen this before does anyone know what the crystals could be.... Thanks....
  4. I recently acquired a collection of assorted rocks and minerals. Many of these specimens are from the 70's, 80's and 90's ( am in the US). In this group there is two ammonite in matrix specimens. I believe they are Russian due to them being pyritized. I am having a difficult time finding info about what species and what value these specimens may have. I go to the Tucson show every year and I don't often see ammonites like this. I was told to come here to find the experts! Thank you for your time, I look forward to posting more now that I am a member StoneAgeQuarry
  5. Dating Ammonite

    I picked this one up this morning, it was to nice to pass up and first one I ever seen local. My question is can you date these by the outer shell and how they are made up? Smooth or with ridges Etc

    Hi I am composing a table of comparisons between nautiloids and ammonites (mainly internal and external anatomy but a couple of extras too) and was wondering if anyone had anything they could add to what I have already? (Table attached) Cheers in advance Mark
  7. Recieved these in the mail today. I have several ammonites, no nautilus, and no polished ammonites. These arrived today and are absolutely gorgeous. I like the ammonite, but to be honest I fond the Nautilus absolutely stunning. Not certain if that is opal on the shell or not but it is gorgeous. Just thought I would share.
  8. I have seen Ammos like this for sale but wasn't certain what the work on the end was about and wasn't certain if it was accurate or what not. Saw this pic on what I understand from here to be a very respected dealer's page and got curious. What is the point of the carving/opening at end of the chamber? Is it simply aesthetic or is it an accurate portrayal of the shell originally?
  9. I had this weathered ammonite fossil I had found in a load of rocks dumped by the highway department under a bridge. It was weathered and not in fantastic shape but it had a lot of limestone on it still. Used some muriatic acid on it and let it soak in water and baking soda to neutralize it. Still not a great specimen, but it removed a lot of rock.
  10. Dear members, today I want to tell you about one of the most epic misinterpreation in the history of italian palaeontology. A story that many newspapers and websites rushed to spread, but that was nothing but a leap! As you read in the title, it's about how an ammonite got mistaken for a dinosaur, in particular for a skull. How that could possibly happen? Let's see. Vigevano is a small town 31 km (20 milles) west of Milan, northern Italy. Famous since the Middle Ages (Leonardo da Vinci resided there several times), today a castle and a porch are its main attractions. But we will focus on the cathedral: built between the XVI and XVII centuries it is decorated with frescoes, paintings and decorative stones. Many italian churches feature very impressive decorative stones in their architecture: one of the most widely adopted is the Rosso Veronese (Red Verona's marble, even though it is a sedimentary rock!), a red and white stone that usually preserves fossils. In the Vigevano case, a slightly different rock was used, called "Broccatello". Still nowadays it is quarried in the swiss town of Arzo, extremely close to the Italian-swiss border, 60 km (38 miles) north of Vigevano. It is a marine limestone that dates to the Early Jurassic; common fossils found within include brachiopods, sponges and crinoids. Ammonites and other molluscs are more rare. On the map the red arrow shows the location of Vigevano and the purple arrow that of Arzo. Well, in fall 2010 one of the most respected italian newspapers shared the news that a dinosaur skull had been discovered in a slab of "Broccatello" that decorates a balaustrade in the Vigevano Cathedral. Responsible for the discovery was Andrea Tintori, then full professor of vertebrate palaeontology at the University of Milan. He reported that the in the cross-sectioned specimen, a cranium, nasal cavities and numeros teeth could be seen. At the beginning he thought it belonged to an Ichthyosaur or a crocodile, then he was convinced that it was a dinosaur. He also claimed to be intentioned to remove the slab and put it through a CT scan, in order to see it in 3-D. You can see a picture of the balaustrade and of the "skull" (the latter taken by me). After 9 years, however, the slab is still in its original location, untoched. Why? Well, because it is absolutely not a dino skull! A close (but not very sophisticated) analysis can easily show that is actually a cross-section of an ammonite shell: no teeth at all can be seen and other features (like symmetrical knobs or indentations) are not even remotely consistent with the original interpretation. (Picture obtained with permission of the original author) So, this is the end of our story: maybe a little disappointing, but in my opinion it teaches that any claim or fact should always be checked two times rather than one! You can read an article about this story from the Smithsonian Magazine website: https://www.smithsonianmag.com/science-nature/a-dinosaur-in-an-italian-church-86306076/
  11. A few (non meg) fossils

    These are some of the fossils I have acquired. Have some others I still need to photo and maybe a big one on the way soon. I have one other ammonite I have found. All 3 are from duck creek. The 2 mossasaur teeth and the mammoth tooth were purchased. The mammoth is coated in something to protect it. There is also a tooth fragment.
  12. Is this a marine fossil.

    Is this a fossil. Looks like a long shell.
  13. I've posted some pictures of the ammonite I bought and want to polish. If you look at the third picture, (ammonite 2.jpg), you will see that on the ammonite some rainbow color resides. I want to make the whole ammonite that color. Is there any way to polish it to make the rainbow show more? Correct me if I'm wrong, but that rainbow color is fossilized mother of pearl aka Ammolite. Does anyone know the following? If you could answer, that'd be a big help. Thank you for your future words! Any suggestions welcome. You'll never know what will work. The best way to clean and polish the ammonite to make the ammolite show and without breaking the fossil. A way to preserve the color when and if I polish it. Thank you so much, everyone, for your future ideas!
  14. ID confirmation request

    Hi, does someone know if this imprint is from a shell, ammonite or nautilus?
  15. Ammonite in architecture

    This picture I took was in a Hotel in CO. It was actually used in the flooring in the Ladies Restroom ... You just never know where you will find such!! I loved it.
  16. So this ammonite was listed for less than 4 dollars but I think it's too pretty. The seller didn't post any other photos unfortunately. They are supposedly from morocco but the seller is from china.
  17. I recently saw a few large ammonites for sale. The seller said the are ancanthoceras ammonites from Cretaceous Morocco. They are about 4-6 inches (10-15 cm) in diameter. Can anyone tell me if these are real and if the ID is correct? Thanks.
  18. Ivoites sp.

    From the album Invertebrates

    Ivoites sp. Early Devonian Emsian (early) Kaub Formation Bundenbach Germany
  19. Hello everyone, I recently received this large 14inch ammonite and the shipper had no care in the world to put even an ounce of protection thus this is the result I'm not experienced with much prep and not confident superglue would cut it so what would you all recommend to help repair this specimen as well as clean off some of the dirt/dust layer coating alot of it?
  20. North Texas Ammonites

    Finally got some time to do some fossil hunting during my travels. This was as I was going through North Texas. Found some beautiful partial ammonites with sutures showing, and one (my favorite) ended up having three echinoids still in it. I plan on leaving them in there, of course. This guy was like 50 pounds Before cleaning with a brass brush After cleaning The whole view Too big to bring home. Maybe I'll grab it next time. I'm so sad I lost this little ammonite on the way back to the car See if you can find the echinoid I missed, but found afterwards while looking at this picture
  21. Caked in the mud

    I went back to Yaxley, and because my method of fossil hunting at this site is to sit on the ground and look very closely for often tiny fossils, got caked in mud. There was less visible than last week, but I found lots of crinoids and ammonites, including this, less than a centimetre.
  22. Ifrane, Morocco.

    Hi, gang. Some of you may remember the Southern Morocco trip I took in February. One of the places visited was quite near to me, about 70 km, lovely Swiss style mountain town called Ifrane where I found some Middle Jurassic brachiopods and echinoids. See http://www.thefossilforum.com/index.php?/topic/93193-ifrane-middle-atlas-morocco/&tab=comments#comment-1026671 A friend offered to drive me up there for the day so off we went I decided to check some outcrops on the other side of the road this time so went and had a peek.Sorry, no photos this time as wifey didn't come, she was ironing her money and she has the only camera phone. The first outcrop is an oyster bed crammed with enormous oysters. This is incredibly hard and couldn't be broken safely. (safely as in getting the fossils out in one piece, not my own personal well-being). But I was lucky enough to find this monster just lying a the base: Scale in inches it would seem. I think I can clean it up a bit. Eventually. After i'd dragged my broken carcass a few hundred whatevers further on, the limestone became yellower, softer but still pretty hard. Lots of broken shell material, a couple of ammonite bits, but the only salvageable items were these couple of rather nice gastropods; again, they should clean up a bit better: Oh, the scale's in centimetres this time. I felt like a change. You know, it's amazing how often I've given up on a days collecting and then, on the way back to the car, you find something just in your path that makes the trip. Here was mine this time : Forgot the scale altogether. Sigh. Maybe four or five centmetres diameter. Harpoceras, perhaps? It has a very pronounced keel. @Ludwigia Roger? I'll be able to prep this pretty well in 2046 when i get to my Jurassic stuff. Nothing spectacular, but it's always so nice to be out in the field collecting. Life's Good. Adam.
  23. Ammonite Species

    ok to Dinosaur World, Plant City and there is this museum that has load of fossils and also has an exploration cave show in there and has loads of ammonite fossils but for 3 pics of these ammonite fossils is i dont know the species and the genus of them.
  24. My parents recently came back from a trip to Montenegro, they picked up an ammonite from a local seller who told them it was from the Bay of Kotor and I’m just not 100% convinced it’s real. I’ve attached a couple pictures, any input would be much appreciated!
  25. Swiss Ammonite ID needed

    Hey guys, So a month ago I went on a hike at 3000m of altitude to this fossilferous site near Plaine-Morte, Switzerland. There I found mostly ammonite fragments including : Sowerbiceras, Perisphinctes( Properisphinctes?), Deshayites and a few belemnites (Hibolites?) I contacted a fossil expert on fossils and that knew a lot about fossils from Switzerland and he indicated me the genuses above as well as the age : Upper Jurassic, Oxfordian ( 163-157 mya ) I went back to the same site where I found this almost complete ammonite. I have no idea what it is and don’t really want to disturb this expert again since he is very busy. Do you guys have any idea on what it could be??? It is very interesting indeed, one side is still covered In matrix. Thank you for all imput and don’t hesitate to ask me for more info! Kind regards.