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Found 68 results

  1. Moroccan Otodus?

    Are all of these Moroccan shark teeth Otodus Obiliquus?
  2. Possible Mako Tooth?

    Hi there, New to this forum and writing on behalf of my family. This particular tooth was found yesterday at a beach (Ocean Beach, Hawke's Bay, New Zealand) near to where we live. Have written to the National Museum (Te Papa, Wellington) and spoken to an assistant at the National Aquarium (Napier, NZ) about what we might have found. See tags for possible species. It will be at least 10,000 years old, but hard to say given we don't know the matrix. There are crumbling cliffs made of dark grey stone at the headland of the beach where it was found. Possibly mudstone. It was found among white pulverised shells on the beach at low tide. Any help identifying species would be appreciated. Cheers, Andrew & Family
  3. ***Picture Heavy*** Went down to my local beach after work on Monday with the intention of looking for plant seeds from the London Clay beds. After waiting half an hour for the tide to recede i could get to the best material.... Within the first five minutes something large caught my eye in one of the material piles.....See if you can spot it... A nearly perfect 58mm Otodus! With intact cusps and serrations, maybe an Otodus Aksuaticus? Needless to say it was a bit of a surprise! Found a few of the usual Striatolamia teeth in situ. And a bit of a ray plate. Found a fish vert slowly wearing out of the clay. A few seeds and a tiny bone (10mm) photos are of poor quality but any ideas of what it is? Seeds. Tiny bone. The tide had started to come in by that point so headed up onto the beach. Photos showing the red crag cliffs with the London Clay bed below it. This part of the beach is picked over a lot so i do not tend to spend to much time there. (Unless its productive such as after a storm where the shingle gets washed away to expose the London clay beds under it then it is incredible ) Few beach finds, the majority are a bit worn after being rolled around by the waves etc. Few partials of much bigger teeth. So in all, quite a productive couple of hours! Thanks all!
  4. Otodus

    From the album Suffolk Sharks Teeth

    58mm Worn Otodus from Suffolk.
  5. Otodus

    From the album Suffolk Sharks Teeth

    58mm Worn Otodus from Suffolk.
  6. London Clay Otodus

    From the album Suffolk Sharks Teeth

    Large 64mm Otodus found at Bawdsey whilst bait collecting.
  7. London Clay Otodus

    From the album Suffolk Sharks Teeth

    Large 64mm Otodus found at Bawdsey whilst bait collecting.
  8. Hi everyone! I recently acquired some dolphin & shark teeth, but they weren't ID'd so I was wondering if some of you might be able to help me out if possible. The first are a set of small dolphin teeth found in Hoevenen, Antwerp in Belgium (Miocene, 15 - 10 mya) And I was wondering if they could be ID'd to down to genus? I've read Eurhinodelphis is a common find and that there are quite a few more named and unnamed species to be found there. The other fossils that I hoped to be ID'd are 5 tiny shark teeth from Oosterzele (Lede formation), Belgium (Eocenen, Lutetian, approx. 44 million years old) I've searched this website as they has a database with I believe all the species found there, but I am not confident and skilled enough to ID them properly. http://users.skynet.be/belgiansharkteeth/Lede formation/Oosterzele set.html My best guesses are that the first 3 teeth belong to the same species and the most common at Oosterzele, which are worn down Otodus auriculatus teeth. As for the other teeth I don't really know, so I really would appreciate some help and input. Thanks in advance!
  9. DKNC-001 Carcharocles auriculatus (Togo)

    From the album Elasmobranchs

    TFF DKNC-001 Tooth height is 2-3/8 inches (≈6 cm)

    © David Kn.

  10. Cretolamna sp?

    Hello all, I purchased two small Moroccan shark teeth and would like to nail down their species. I think they are either Cretolamna appendiculata or small Otodus obliquus teeth. Please let me know what you think.
  11. Am asking obo a friend of mine. I personally have no interest in this item for myself. But thought I would ask here anyway as I couldn't give him an answer. Is the tooth genuine? Is the ID correct? This is the only photo he has sent me.
  12. I have detailed our shark education program in previous posts but I forgot the best part. Fossils on Wheels has around 350-400 shark teeth that will be given away to kids. All of these come from donations. My son and I have donated around half and the rest have come from donors on TFF, who we have thanked in previous posts. These are really my favorite fossils because they serve a higher purpose. Getting kids interested in science, natural history, fossils and of course, SHARKS !!! I write a lot in these posts but the core of what we do is summarized above. This is fun and we are feel lucky to be doing this. The donations from TFF members are allowing us to do this and the kids will know it. Thanks to donations of marine invertebrate fossils, these teeth are going to become fossil starter kits with other fossils mixed in. The pictured below are some of the fossils. Some STH mako teeth and about 100 Squalicorax teeth are not in the picture because they are in my laundry room at the moment. Tomorrow, I start bagging these and putting together information cards so I wll know exactly how many fossil start kits we will have in a day or two. We have a nice mix Moroccan Squalicorax, Sand Tiger teeth and Otodus teeth, a significant number of STH mako teeth, teeth from a few smaller STH shark species, a few Ptychodus, and a few Goblin Shark teeth. We are trying to make sure we give away teeth from species we cover in the presentation. THANK YOU FOSSIL FORUM MEMBERS for helping us make this happen
  13. Maryland Paleocene 2/17/19

    Headed out to the potomac this morning and man was it nice out. Hit low tide and made my way to the cliffs, which all fallen right now btw. Found some nice sand tigers today’s and some smaller beaten otodus. Highlights of the day were a nice little croc tooth and a croc vert which is a first for me. I don’t seem to find much bone in the Aquia formation.
  14. Hey all! This week my colleagues and I published a paper we spent most of the last decade sweating over. It is an exhaustive report of all known late Miocene-Pleistocene records of teeth of Otodus (aka Carcharocles) megalodon teeth from the west coast in an attempt to estimate the date at which O megalodon went extinct. Aside from some conspiracy theorists who will wait until they die and not see a live 'meg', we all know it's not living today as there is not a shred of positive evidence indicating its existence. We know it's around in the Miocene, and the early Pliocene. Did it survive into the Pleistocene? End of the Pliocene? or become extinct sometime earlier? These questions require serious thought because it has direct implications for whether or not O. megalodon went extinct at the same time as a bunch of weird marine mammals or if it was killed off by a supernova known to have occurred 2.6 Ma. An earlier study pooled fossil occurrences from around the globe and statistically reconstructed a mean extinction date of 2.5 Ma, with significant error (~3.6 Ma to 100ky in the future being the max and min extinction dates). We found that in the California record, reliable occurrences are only found in early Pliocene rocks. All examples of late Pliocene or Pleistocene teeth were either poorly dated, reworked from Miocene rocks, had poor provenance, or are completely missing (and never photographed) and therefore the identification cannot be confirmed. We thus predicted a 3.6 Ma extinction date. To test this, we re-analyzed the dataset published in 2014 but chucked a bunch of bad data and exhaustively re-researched the stratigraphy of each locality and corrected about 3/4 of the dates in the remaining dataset, and added our new California records. When we analyzed this corrected dataset, our margin of error (the time between the max and min extinction dates) shrank from 3.6 million year long interval to 900,000 years; *probably* extinct by 3.6 Ma (mean extinction date), definitely by 3.2 Ma (min extinction date), and possibly as early as 4.1 Ma (max extinction date). This extinction therefore precedes the 2.6 Ma supernova, as well as the Plio-Pleistocene marine mammal extinction (which in all likelihood was not a mass extinction or an extinction event, rather just a period of higher extinction/origination rate). About 4 Ma is when fully serrated Carcharodon carcharias teeth show up in the North Atlantic, indicating when the two overlapped, however briefly. We think this biotic event matches best - the mechanics of exactly how this was driven are to be figured out by someone else, but perhaps adult Carcharodon outcompeted juvenile O/C megalodon prior to becoming gigantic. Some analyses of Otodus lineage growth rate is going to be necessary. Here's the open access paper here: https://peerj.com/articles/6088/ Here's a blog writeup I did for PeerJ here: https://peerj.com/blog/post/115284881293/early-pliocene-extinction-of-the-mega-toothed-shark-otodus-megalodon-boessenecker/ Excellent summary in Nat Geo: https://www.nationalgeographic.com/science/2019/02/megalodon-extinct-great-white-shark/ CNN: https://www.cnn.com/2019/02/14/us/megalodon-extinct-earlier-scli-intl/index.html Fox News: https://www.foxnews.com/science/megalodon-shocker-huge-killer-shark-may-have-been-wiped-out-by-great-whites Forbes: https://www.forbes.com/sites/melissacristinamarquez/2019/02/14/great-white-sharks-may-be-the-reason-why-giant-megalodon-shark-is-extinct/#6a06986a6486 Daily Mail: https://www.dailymail.co.uk/sciencetech/article-6700495/Giant-50-foot-long-predatory-shark-went-extinct-one-million-years-earlier-previously-thought.html
  15. After a month of needle work, finally finished. This cluster is 65x30cm and I love it, lots of work but I just enjoyed it so much that I am sad it is finished Nothing to work on now This was my first work on a fossil and even though quite scary, very rewarding. I am definitely not stopping here. Besides 29pc of shark vertebrae I managed to expose many other fish vertebrae and bone fragments but the highlit must be an Enchodus tooth. Thank you all for your advise and helpful info on this project.
  16. Our own Robert Boessenecker authored a recently released paper that suggests that Megalodon died out due to competition from the smaller Great White Shark. “The Early Pliocene extinction of the mega-toothed shark Otodus megalodon: a view from the eastern North Pacific” by Robert Boessenecker et al. from PeerJ https://www-m.cnn.com/2019/02/14/us/megalodon-extinct-earlier-scli-intl/index.html?r=https%3A%2F%2Fwww.cnn.com%2F Full text article here: https://peerj.com/articles/6088/
  17. Final clean up

    I decided to expose some of the bone fragments on my otodus vertebrae cluster and now I will like to finish it. Is there any way I can clean the exposed bones? Some solution? I have been working with a needle mostly but can't clean the bones this way without damaging them. I will like to make them pop out after I preserve the whole thing. Any ideas?
  18. Shark tooth ?

    Hi friends, I have four of these shark teeth and I will like to know how the tooth gets to this state. Is it hollowed by somebody or is it found like this? How does this happen that you get only the outer shell of the tooth? Maybe this is common but I have never seen one before today.
  19. Otodus vertebrae

    This week I willl be collecting these Otodus Obliquus vertebrae cluster. It's from Morocco and the size is about 65x30cm, there is 24 vertebrae and the biggest one is around 7cm diameter. There is still lots of matrix on the vertebrae so I was planning to finish cleaning it all. I will like your opinion on this. Should I do it, how difficult is it going to be? I like it the way it is already but I am sure it can be finished better. Is it worth trying?
  20. I’m wondering what the age of the Otodus teeth are in Morocco. Does anybody have any papers on the teeth there? Also, does anybody know how many genera there are there? Thanks
  21. Thinking about selecting a light sand color for the background to make these teeth pop. Here’s an evolutionary display of the Megalodon. Left-to-right: O. obliques, O. auriculatus, O. angustiden, O. chubutensis, O. megalodon. Notice the abscence of cusps from the Meg. The two right most teeth are from Calvert Cliffs, the two in the middle from South Carolina, and the far left from Morocco. FYI @Kurt Komoda @FossilSloth @caldigger @SailingAlongToo @Malcolmt
  22. Very Large Otodus obliquus?

    I would have called this Otodus obliquus, but this morning I was reading, and got confused, about these teeth from Morocco. Now Im not sure what this is called. Even with the tip missing, this tooth measures just over 3.5 inches. RB
  23. Carcharocles megalodon (Joe Cōcke collection)

    From the album Elasmobranchs

    I do not own this rare tooth. It is from the collection of paleontologist Joe Cōcke, which he found locally and gladly allowed me to photograph.
  24. Symphyseal Otodus?

    Seeing this online, one of the hundreds of patho otoduses that come out of Morocco, but I have a suspicion this is a Symphyseal tooth, note the offset root. They thought he same on the parasymphyseal FB group (strange such a thing exists) But, I am not sure, you guys know? It’s not expensive, and I think symphs are cool.
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