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Found 21 results

  1. bthemoose

    Carcharodon hastalis

    From the album: Calvert Cliffs

    This one's a bit beat up, but it was my first hastalis and the first larger shark tooth I found, so it has a special place in my heart.

    © bthemoose

  2. bthemoose

    Carcharodon hastalis

    From the album: Calvert Cliffs

    © bthemoose

  3. bthemoose

    Carcharodon hastalis

    From the album: Calvert Cliffs

    © bthemoose

  4. bthemoose

    Carcharodon hastalis

    From the album: Calvert Cliffs

    Nice prominent cusplets on this one

    © bthemoose

  5. bthemoose

    Carcharodon hastalis

    From the album: Calvert Cliffs

    © bthemoose

  6. ThePhysicist

    Extinct White Shark Tooth

    Identification Teeth of C. hastalis closely resemble those of the modern "great white" (C. carcharias) in having erect triangular cusps, no lingual dental band ("bourlette") or a thin one, and no nutrient groove. Differing from the extant species, they have no serrations on the edges.
  7. ThePhysicist

    Carcharodon hastalis tooth

    From the album: Sharks

    Historically known as "makos", we now recognize C. hastalis as being ancestral to the modern great white shark.
  8. As the year comes to a close i decided to do a bit more collecting at one of my favourite Australian sites: Beaumaris near Melbourne in Victoria, Australia. Once again i travelled down and stayed at a motel near the beach for three days (27/12/18 through to 29/12/18). This trip is a sequel to the previous two trips i have made here which are also posted on the forum: Jan 2016 trip: http://www.thefossilforum.com/index.php?/topic/61248-fossil-hunting-holiday-in-victoria-australia-dec-2015-jan-2016/ Feb 2017 trip: http://www.thefossilforum.com/index.php?/topic/71996-fossil-hunting-holiday-at-beaumaris-australia-feb-2017/ Beaumaris is a significant site with both marine and terrestrial fossils from the latest Miocene aged Beaumaris Sandstone Formation (5 - 6 million years old), which crops out in distinctly red-coloured coastal cliffs and also in offshore rocky reefs. An impressive diversity of both vertebrate and invertebrate fauna occurs here, and the Melbourne Museum has put together a neat PDF of the fossil diversity for those unfamiliar with the site (https://www.bcs.asn.au/fossils_of_beaumaris_2015-02.pdf). My plan was to collect every single low tide across these three days, and sleep during every high tide. Yes, this meant going out collecting in the middle of the night too! My main interest was to collect shark teeth, however they can be tough to find here and are certainly not as common as at many other sites internationally that the people on this forum would be more familiar with. This often seems to be the case with Australian vertebrate fossils. It does however make it quite rewarding when you do eventually find them! The first day of searching (27/12/18) proved to be rather disappointing. I finally got to try snorkelling for fossils, which is a popular method here for finding things exposed along the seabed, but alas after about 3 hours in the water i had not found any bones or teeth. I was unable to locate the nodule bed where most of the vertebrate fossils originate from, which i think played a part in my lack of success. The seabed was also quite sanded over and it was hard to see much. I was definitely out of my element here, but it was also a lot of fun to get close to some of the local marine life, including stingrays! I decided to return to land collecting after not doing very well in the water and when i did so my luck changed greatly. The next two days and nights of land collecting (28/12/18 and 29/12/18) proved to be much more successful and i even got to meet two TFF members on the beach (coincidentally)! @Echinoid and @Tympanic bulla were also out looking, and we had a nice chat before they headed off to continue snorkelling. I then spent most of my remaining time on the beach flipping rocks and examining the pebbles up close, ultimately finishing the trip with a total of five shark teeth which i was very happy with! Carcharodon hastalis tooth as found. 24mm long. Large Carcharodon hastalis upper anterior tooth, as found at 2 am (with a head-torch) on 29/12/18. Measures 56 mm long. I had long been waiting for a tooth of this size! Carcharodon hastalis posterior tooth as found. 15 mm long. Another Carcharodon hastalis posterior as found. 13 mm long. And a small fragment of cetacean bone. Worn pieces like this are the most common vertebrate fossils at Beaumaris. Pictures continued in the next post
  9. Jonathan Raymond

    My shark teeth collection

    Here is my shark teeth collection. photo 1 Species: Carcharocles megalodon Age: 2,6-15 million years (Miocene-Pliocene) Size: 9,5 centimeters Localisation: Georgia River (Georgia) Formation: Hawthorn photo 2 Species : Isurus hastalis Age: 9 million years (Miocene) Size: 4,8 centimeters Localisation: Copiapo, Chile Formation: Bahia Inglesa photo 3 Species: Squalicorax pristodontus Age: 70 million years (Upper Cretaceous) Size: 2,9 centimeters Localisation: Morocco Formation: Kem Kem Beds photo 4 Species: Carcharodon carcharias Age: 3 million years (Plocene) Size: 4,6 centimeters Localisation: Ica region, Peru Formation: Pisco
  10. ThePhysicist

    Carcharodon hastalis (broad-form)

    From the album: Sharks

    Upper teeth from an extinct white shark Hawthorne Fm., St. Mary's River, GA, USA Left 2 9/16" slant height, right 2 5/8" slant height
  11. ThePhysicist

    C. hastalis vs C. carcharias

    From the album: Sharks

    A comparison between two extinct white shark teeth, and a cast of a modern great white. All from the upper jaw.
  12. ThePhysicist

    Carcharodon hastalis (narrow-form)

    From the album: Sharks

    Narrow variant of the white shark, C. hastalis.
  13. fossilsonwheels

    STH hastalis or planus

    I have had this STH tooth for awhile but I can not identify it. I have assumed it has to be either a hastalis or planus. When I first got the large group of teeth that this tooth was in, I set aside as I thought it might be Parotodus. I quickly talked myself out of that ID. I talked myself into hastalis or planus. I have looked at teeth in my collection and can’t find an exact match. I checked Elasmo and same story. My best guess is lower planus. It is just over 1” on the diagonal, pretty thick root. Any thoughts ???
  14. I found this shark tooth a few weeks ago along the Calvert Cliffs (Miocene exposure) in Maryland and categorized it as Carcharodon hastalis. Looking at it again, I think it's perhaps Isurus desori. However, while I know C. hastalis can sometimes have cusplets, I'm not sure if that's true for I. desori. What do you think? Was my C. hastalis ID correct or would you label this one I. desori or something else? Whatever you think the correct ID is, if you could help point me to what you see as the defining characteristics, that would be great as well. Thank you!
  15. BellamyBlake

    Carcharodon hastalis

    Hi everyone, I have here a tooth being sold. The merchant identifies it as Carcharodon hastalis. Based on confirmed photos of Carcharodon hastalis, I have many doubts. My main reasoning is that the angle between the start of the root and the rest of the tooth seems far too steep. Carcharodon hastalis, to me, seems to have rather straight edges; this one appears way too curved. This is why I believe the merchant may have misidentified their tooth. It's 19 mm long, and supposedly found in Chile. I'd appreciate any confirmation, and apologies as these are the only two photos provided by the merchant.
  16. Fossils on Wheels got our first donations of fossil materials for our education program this week. My son and I have donated some of our fossils and loaned the rest. Since we are applying for a 501c3, we have to keep careful track of our fossils. IF they are paid for by Fossils on Wheels money, they belong to Fossils on Wheels. If they are purchased with our money, we donate and loan. Donations belong to Fossils on Wheels, not my son and I. I think that clarification is a good thing to let people know about because donations come from our new friends private collections and they are given with the intention of being used for education and given to the kiddos we educate. My son and I do not sell fossils. Fossils on Wheels will not be legally able to sell fossils. We will also not be trading donated fossils. They are strictly for education purposes. If you do donate fossils, we can track how they are used and verify where they end up. We had two donations this week and we want to thank our donors. The first donation was from @JBMugu and included a lot of shark teeth and mammal bones from Sharktooth Hill a.k.a Round Mountain Silt. Most of the teeth will be given to students from Paradise and Chico schools. A small number will stay in the program for shark tooth ID labs. A couple dozen of the teeth are headed to the Gateway Science Museum as a separate donation. The mammal bones will be used in our intermediate school education programs that focus on classification and evolution. All of these fossils, except for one ear bone, will be used for hands on exploration of fossils. The ear bone, I think it is from a small Odontoceti, will be used as a presentation piece for the evolution lab. We also got a donation of some super cool shark teeth from @caldigger and information explaining some of the differences in the fossilization process and why different fossils from different locations look different. We do want to explore the process of fossilization and how geology lets us learn about the natural history of the planet. This donation included a super cool split tooth that shows in the process perfectly. These teeth are for the presentation and the kids will get to handle a few of them in ID labs as well. We just wanted to thank our donors and to let our fellow TFF members know how much these donations help us with our goal is bringing fossil education to our local children. The first picture is various verts from STH. The large one, bottom left, is a cetacean. It looks very similar to a couple of Tiphyocetus verts from STH that i have. There is another large one which I would think would be cetacean. The smaller mammal verts I am not sure about. There is also a shark vert. Second picture is STH shark teeth. There C. hastalis, planus, plus a few tiger sharks and a few I am unsure about right now. Some still have STH dirt on them and I am thinking about having kids clean them during a lab. The third picture is the shark teeth from @caldigger including our first Pygmy White Shark teeth from morocco, some beautiful mako teeth and a few others that I need to ID.
  17. Brett Breakin' Rocks

    Carcharodon hastalis 03

    From the album: Sharks and their prey ....

    Carcharodon hastalis Savannah River Savannah, Georgia

    © Matthew Brett Rutland

  18. Brett Breakin' Rocks

    Summerville September 14 2018

    From the album: Summerville, SC Fossil Hunts

    Carcharodon hastalis Summerville, South Carolina

    © Matthew Brett Rutland

  19. Brett Breakin' Rocks

    Carcharodon hastalis

    From the album: Sharks and their prey ....

    Carcharodon hastalis Atacama Desert, Chile

    © Matthew Brett Rutland

  20. Brett Breakin' Rocks

    Carcharodon hastalis 02

    From the album: Sharks and their prey ....

    Carcharodon hastalis Savannah, GA

    © Matthew Brett Rutland

  21. Fossil-Hound

    Carcharodon hastalis

    There's a debate as to whether or not Great Whites evolved from Makos. There's also enough scientific evidence to suggest they do. See: This tooth can therefore be classified as either Isurus hastalis or Carcharodon hastalis. See: https://en.wikipedia.org/wiki/Isurus_hastalis
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