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Found 1,315 results

  1. Tarrant County 11-21-20

    Here are some pictures of my latest fossil hunting trip. I have been going to post oak creek a lot for shark teeth and wanted to try something new out. I found a steep embankment on a river in Tarrant county with several partial ammonites sticking out. After climbing down the embankment I found an assortment of fossils. I am not sure of the period or the formation in Tarrant county but there was quite a variety. Picture 2 is a conglomeration of marine fossils. Picture 3 is a nice ammonite I went back and chiseled away later. I will post that picture later but it was a very nice enact one. Pictures 4 and 5 are of a nice ammonite that unfortunately broke as I was removing it from the matrix but I was able to piece it back together. It was also interesting to see the internal structure of it as well. The rest are just closeups of common fossils except for the last 4 pictures 13-16 I have no idea what they are. Any ideas? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16.
  2. Rhaeboceras halli

    A new edition to my collection. I was told that the original finder of this item listed it in his journal a Rhaeboceras Sp. and the seller said her source could not find it listed. A check of the internet proved it be an ammonite. Location matches his journal entry. SPECIES Rhaeboceras halli AGE Late Cretaceous - Upper Campanian Stage View on Geological Time Scale LOCATION Rosebud County, South Montana FORMATION Bearpaw Shale SIZE 2 1/4 " wide 5.8cm x 1 1/4 inch thick. CATEGORY Ammonite Fossils
  3. Recent Folkestone Fossil Trip

    Hi All, Thanks for having me here. Me and my girlfriend have recently discovered an interest in looking for fossils. Luckily for us, we have spent some time in Folkestone, England which we have discovered is pretty full of fossils in the right place. The below are a couple of finds from one afternoon down at Copt point while we were walking the dog. Any extra information about what we found would be very much appreciated. My uneducated guess is that all are ammonites except for the two specimens at the bottom, which I am completely unsure of. They all came out of a gault clay slump right where the sea meets the cliff. Is the bottom right a bone fragment? Just a rock? Again, any help is appreciated. From research the gault clay and underlying greensand is around 110 myo. Many thanks, Sam & Ro
  4. Impromptu Trip?

    Good afternoon, fossil friends! This post is a bit of a long shot, but I figured I’d rather ask than not! This may be the incorrect thread to PLAN trips, so if it is, please let me know and I’ll delete it! I certainly intend to share some stories from past trips, but I’ve found myself with free time Wednesday in the first half of the day and I’d love to go on an adventure fossil hunting with someone who is also available, should anyone be up for that! I’m also down to plan future trips for other dates! I live in Denton county and I’m more than willing to travel a couple hours for a productive site! I myself have only explored the well-known north Texas sites such as Mineral Wells, Post Oak Creek, and Lake Texoma. If anybody would like to go there, NSR, or any other places they know of, it’d be really cool to explore with another fossil fanatic. My girlfriend is a great partner, but I always feel bad boring her with my rocks! Plus, I haven’t gotten to explore or learn as much about the fossils of this region as I’d like. I was a part of Dallas Paleo for a while, but after moving out of my parents’ house I haven’t had the time to rejoin, but hope to in the future! For now, I’d like to take some of my free time to learn with other paleo nerds when I can. Please reply if you’re interested in meeting up sometime and heading out to find some ancient friends!
  5. Whitby area finds

    As the current lockdown has no restrictions on exercise we took ours today on one of our favourite stretches of the North Yorkshire coast. It was slim pickings to begin with but eventually I had about as much in my bag as I could carry. A fresh fall offered up some nice Eliganticeras and we found plenty of the usual Dactylioceras too, but there’s a couple of things that I’d like your opinions on; the first is a possible crinoid that I’ll put in the replies below...
  6. Hi guys. It's been a while as always when it comes to posting on here. Plenty of reason, too long to go into. I hope everybody is doing as well as they can be during this pandemic. Now onto the good stuff. A while back, I posted my phylloceras in a sorry state of affairs, sections missing everywhere, cracks everywhere. Basically it didn't look fantastic. You'll be able to find it somewhere on here from previous posts. Well, lockdown happened here in the uk, which means there was only one thing to do during this time, and that was to get to work in the workshop and finish a lot of stuff. This was was number one priority as I had been putting it off for so long. And here it is All the cracks we're filled in and painted up, there is a small section on the bottom that has been done and finished since I took this photo. There was a section of the outer whorl that had blown out and was none existent, and replaced by shale, probably some form of gas build up happened inside it and blew it out and destroying it. I then had to make a choice of rebuilding it, or figuring something else out. I decided to go against rebuilding, due to lack of experience and the fact it was such a large section, it probably wouldn't have looked quite right. Luckily, I have plenty of dactylioceras specimens of all shapes and sizes, and decided to filll the section with these, you do find these ammonites washed into the mouth borders of pyllos, so iv stuck with what would be there. I don't even know how many hours went into this any more, but it was a lot, and its definitely something that has forced me to improve as a preperator. I'm currently building a metal stand for it, as it weighs a fair amount and no plastic stand will hold it. It now finally sits proudly in my collection and probably always will I hope you all enjoy my work, and i'll be posting more regularly from now on due to a second lockdown in the uk. I actually have a rather large crocodile block i'm working on currently, including a rostrum, vertebrae ribs, teeth etc, theres a lot going on and it'll probably take a long time to complete due to the size and the fact that the majority of the work will involve using acid to remove everythign, either way, it'll certainly be a stunning piece once complete. Oh, and a rather large icthyosaur block measuring over two foot. (yes i have my work cut out for me haha) Thanks. Dan
  7. Paperclip shaped ammonite may have lived for 200 years based on isotope analysis of shells https://phys.org/news/2020-11-ancient-squid-like-creature-paperclip-shaped-shell.html
  8. My Whitby Ammonite Collection

    Hi I decided to display a few of my Whitby ammonites. Most are self found, some bought. Some are prepped by me. Some prepped by other people. One of the ammonites on the top shelf isn’t from Whitby. Guess which. Where’s it from and what is it? I’ll post some close ups in due course. Thanks for looking.
  9. Dear all, Recently I purchased a "Nostoceras Malagasyense" Heteromorphic Ammonite from an online platform. Initially, I didn't question the authenticity of the specimen, as the seller seems to have quite a few Cleoniceras ammonites for sale (which are clearly genuine). However for this piece I'm quite unsure if it is truly authentic, and would like a second opinion. I understand that there is an Export Ban for fossils from China, but to my understanding that's for Vertebrate fossils (ammonites are invertebrates). My main concerns are: Is it a legitimate fossil? Some parts look carved, but at the same time some of the striations look too difficult/ not worth the effort to forge for the price paid. Thank you!
  10. Hi everyone, I've been a bit of a skulker on these forums so I will make my introduction brief and get to the pretty photos. I moved to New Mexico about 2 years ago and have been fossil hunting and rock hounding ever since. I've found some pretty awesome stuff, but this past weekend I really had my first major find, what I believe to be Coilopercas inflatum (see attached pictures). I have managed to get this specimen out of its surrounding matrix very nicely, and I would like to keep it whole and attached to the matrix base that it is currently on (the ammonite is actually detached from the matrix currently, but sits nicely in the fossil impression and my plan is to re-secure using cyanoacrylate gel once I have prepped the actual ammonite). My question is how should I deal with the white crust that is obscuring the ammonite structure? It is fairly soft, so I am wondering if a dilute acetic acid will take it off without damaging the underlying fossil. Secondly, how would one go about polishing this ammonite, and what varnish is typically used to keep it shining and protected from UV? Thanks for your help everyone! Really want to prep this one right!
  11. Retrospect Ammonite

    Parkinsonia parkinsoni (ammonite) Jurassic, Upper inferior Oolite Bridport Dorset. UK 6.5" The first photos I took a few years ago did nothing for this unique specimen. I found it difficult capturing the details and still think they could be better. The ammonite has many chambers preserved in calcite that glow when backlit. Calcite crystals can be seen growing inside some of the empty chambers. Fossil, mineral, crystals, art, science, love Happy collecting.
  12. Spiny ammonite from Whitby

    Found this poking out of a block of shale this morning in the Whitby area; managed to keep the remaining spines mostly intact while starting to prep it. Any ideas on genus/species? Would the pyrite around the opening have resulted from the ammonites soft tissue? Thank you for looking
  13. Hi all! I was finally able to visit the Volga site thanks to a water level/ good weather window. The journey was mostly a success, I got a better understanding of the site, used new means of transportation and examined more of the shoreline. Among the finds were two dozens of marine reptile verts and bone fragments and LOTS of ammonites and other mollusks. Unfortunately the river level was not low enough, 1m higher than during my 1st trip, 0,5m lower than in the 2nd. But it was at least possible to walk the shore. There's still a lot more to do, but now I have a pretty clear idea how to maximize the hunt results for the next trip. The report will be picture-heavy and divided into several blocks I'll be adding in the next few days. Let's start with the scenery.
  14. Ammonite Discovery

    So, a long time ago, I bought a fossil Ammonite at an antique store in Post Falls, Idaho. I posted it here, and one user said it was mostly carved. Heres a picture of when I bought it. Two days ago, I was at a school volunteering for aftercare. I was able to show the kids the fossils I had, including the mostly carved Ammonite. While showing the Ammonite fossil, I realized something. The parts that were mostly carved were in sandstone. When I got home, I was thinking. Using mathematics, I was able to determine that the rest of the Ammonite was UNDER the carved sandstone. Very carefully, I removed the sandstone with a brush. My theory was correct. There WAS more of the Ammonite under the carved sandstone. It looked mostly carved before, but now, it looks about 70% uncarved. I will attach a picture of after the sandstone was taken away in a second, I need to get it to the right file size. Sorry to keep you all in suspense. Jared
  15. Ammonoid ID

    hi all, anyone know the specific attribution of this genus type or direct to any science-based paper? Macrocephalites? mid-Jurassic. ?
  16. Help to identify

    I found this along the river. Assuming it came down from the Bearpaw Formation. My question is regarding the edge of the fossil. I think it is a piece of ammonite but the outer edge is creased. I have been reading that some Ammonites have a keel but all examples I have found look symmetrical. This one is creased on one side and does not look symmetrical at all. Could it have been damaged and flattened that way during fossilization? The nacre on the outside looks like the animal grew this way. What do you think is going on here? Is it a piece of an ammonite or maybe something else?
  17. North Sulphur River 10-2-20

    Here are a few pictures from another recent trip to NSR. Nothing special again but also a few interesting items I have no idea that they are. Anyone know what some of these pictures are of? IMG_4123.HEIC IMG_4127.HEIC IMG_4148.HEIC IMG_4130.HEIC IMG_4144.HEIC IMG_4141.HEIC IMG_4143.HEIC IMG_4147.HEIC IMG_4145.HEIC IMG_4146.HEIC
  18. First off what are the lines on ammonites called? I was looking at images to find out what they are called and found septa on most but suture lines on some other ones, which is correct? Sorry ammonites isn't my strength. After that I was wondering if the lines had anything to do with age like on a big horn sheep's horns. I was doing some research on them and found that the 4 year old line is the most prominent and was wondering if ammonites had something similar. I thought they might because the last ring ends differently on different specimens, which is easy to tell when half has been cut and polished.
  19. Recent ones

    From the album Portuguese Ammonites

  20. Hi everybody! Today i wanna show you one of my dearest ammonites...Choffaticeras segne! Making a search by keywords in TFF, i found only three results for this species...so i decided to enlarge the number! Now i present you my Choffaticeras segne: it comes from Goulmima in Morocco, belongs to Turonian (Upper/Late Cretaceous), it is 19cm in height and 1.461kg in weight. This specimen has been polished in both sides, obviously. It's very decorative and it makes its good looking part in my living room. I love its external sutures, how do you call this kind of suture in english? Please, let me know! For who loves taxonomy and scientific classification (like me), i leave you a little pattern that i made. Thanks for "watching" Choffaticeras segne Dominio: Eukaryota Regno: Animalia Phylum: Mollusca Classe: Cephalopoda Sottoclasse: Ammonoidea Ordine: Ammonitida Sottordine: Ammonitina Superfamiglia: Acanthoceratoidea Famiglia: Pseudotissotiidae Sottofamiglia: Pseudotissotiinae Genere: Choffaticeras Sottogenere: Choffaticeras (Choffaticeras) Specie: Choffaticeras (Choffaticeras) segne
  21. Whitby Ammonite

    Daughter and I found this in the Whitby area on Sunday; when I looked again at it last night it had already started to crack open so only needed a few light taps. Am I right in thinking it’s a Hildoceras, and can it be narrowed down further perhaps to Hildoceras Bifrons? Thanks for looking
  22. Last Trip of the Season

    The snow has arrived at the elevations that I like to hike covering up the fossil beds now. These pictures are from one of my last hikes in the Talkeetna Mountains and as you can see these are oversized fossils. The ice axe next to the clam is 30". Kobuk and one to the bigger ammonites measured at 65 cm diameter is another whopper. Ok, now a Where's Waldo picture. How many ammonites do you see in the picture? I have the answer and they as still are all still there in the outcrop, some are broken. The answer is nine ammonites. Until next year happy fossil hunting!
  23. North Sulphur River 2008

    Here is a trip I took to the NSR back in 2008 and had some great finds. Many bones and a good Mosasaur vertebrate. I don't know what is in the top center of the last two pictures. Also a tooth of what appears to be a fossil of a more recent mammal is right under it. Any ideas on either one? Sorry I didn't use anything to scale but it should all be pretty typical of the type of fossils from this area.
  24. Hello there, I bought this ammonite fossil several years ago from Nepal. Can anyone help identify what kind of ammonite is this? Thanks!