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Found 1,284 results

  1. Is this an Angustidens shark tooth?

    I compared my shark tooth to different shark teeth images on google and think that it came from an Angustidens shark? Am I correct? Thanks guys!
  2. I am new to collecting meg teeth so I hope my question is not “dumb.” Are the tooth cusps on a C. chubutensis vestigial structures from the earlier three pronged tooth like on O. obliquus? I read a physics article about how the megs tooth serration evolves from the smaller prong teeth getting sharks caught on larger prey causing them damage. Did the improved serration as the sharks evolved to be larger lead adult C. megladon adults not having cusps at all? I hope the question makes sense.
  3. Pathological Cretalamna sp. Texas

    From the album Cretaceous Shark Teeth

    Texas Cretalamna with moderate pathologies, from Britton Formation, Eagle Ford Group.
  4. Pathological Cretalamna sp. Texas

    From the album Cretaceous Shark Teeth

    Texas Cretalamna with moderate pathologies, from Britton Formation, Eagle Ford Group.
  5. Kem Kem Leptostyrax macrorhiza

    From the album Cretaceous Shark Teeth

    One of only 6 known Leptostyrax from the Kem Kem beds of Morocco. Lower Upper-Cenomanian in age.
  6. Kem Kem Leptostyrax macrorhiza

    From the album Cretaceous Shark Teeth

    Very rare Leptostyrax from the Kem Kem beds of Morocco. Lower Upper-Cenomanian in age.
  7. cretaceous,USA,Pisces

    A new large Late Cretaceous lamniform shark from North America, with comments on the taxonomy, paleoecology, and evolution of the genus Cretodus Kenshu Shimada &Michael J. Everhart Article: e1673399 | Received 30 Nov 2018, Accepted 09 Sep 2019, Published online: 18 Nov 2019 LINK (description of Cretodus houghtonorum n.sp) edit:5,30 MB,or thereabouts relevant: Philosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character Vol. 210 (1921), pp. 311-407 V I I I .— On the Calcification o f the Vertebral Centra in Sharks and Rays. B y W . G. R id e w o o d, D.Sc. 18 MB!!
  8. Coprolites??

    Went through my misc. Pile and was wondering about these. Are they coprolite and from what? Is there any way to determine species of shark?
  9. Miracles do happen!

    A few weeks ago I was digging out a section of the mid. Miocene Temblor Formation deposit and unearthed this large but damaged Carcharodon hastalis tooth. Man, what a disappointment! It seems like it had succumbed to the dastardly faulting damage this area is known for. Long story short, I took it home with my head held low. Fast forward to the following weekend and I went to the same dig hole with the intent of screening loose matrix for micro fossils. It was obvious someone had been digging in the hole during my absence, tossing sediments out of the pit. Low and behold while sifting the silt piles I came across a broken tooth tip in the screen and I got to thinking...hmmm! When I got it home and cleaned off, sure enough it was the missing part of my tooth found the week prior. It seems near impossible to find such a thing given that so much material had been moved around and thrown from the hole. But now I have the whole tooth. All 2 3/4" of it!
  10. Coprolites??

    Thinking it's shark, wondering what type of if is and thoughts about it. I'm going to post more in the replys since I can't load all at once. One of them is different then the others all found in Venice Florida.
  11. Hi everyone, Requesting one more ID tonight. I received a bunch of bone valley teeth (mostly Megs), but a few others sprinkled in. This beautiful speckled one is stumping me. It is not a hemp and not a lemon as can be seen in the photos. It is just over 3/4”. Do you think it is a bull shark?
  12. Just like the Western Interior Seaway needed any more large predators https://phys.org/news/2019-11-fossil-unexpected-discovery-million-year-old-shark.html
  13. Shark Tooth Identification Help

    Hi, I recently bought this tooth from a friend, but I am uncertain which species it belongs to. The root is very thin with great white characteristics, but the lack of serrations on the blade is more like a mako. My best guess is that it is a Giant White Shark (Charcharodon Plicatitis). It measure 2.75 inches. The last 2 photos show the tooth in comparison to a Great White tooth on the right side and a Mako Shark tooth on the left side of the tooth in question. What do you believe it is? Thank you for helping me out.
  14. Hi everyone! Yesterday I found a shark tooth on a beach in Jacksonville, Florida that I would love help identifying. Does anyone have any ideas what it could be? Thank you so much in advance for your help.
  15. Sharks teeth.

    Hello! Help with ID please. Western Ukraine, Lviv region
  16. DDMA (DREDGING DISPOSAL MANAGEMENT AREA)

    My question is below but here is a brief intro! Thank you all for the great insight into fossil hunting. I'm Josh, from Florida and have been hunting relics for about 5 years now (27yo), from metal detecting to surface hunting. Just a hobby that I do occasionally, mostly to learn about the history of our land and try to preserve it before it's all worn away. I find the research in hunting almost more fun than the actual craft. Although, it's tough here in FL to be caught "preserving history" .....give me a break. Anyways, i've been lucky enough to have a job as a Surveyor which has put me in places that I hate sometimes.... but also gives me access to pieces of land that a lot of hunters dream of in FL. I've been able to find old bottles, arrowheads, and relics at work without the hassle of getting permissions(that would be mostly impossible to get otherwise). So when i'm hunting on my time I always find it so hard to find places to do so freely. Anyways, enough about me. Here is my question regarding a potential megalodon tooth site, definitely shark tooth site. I've found some nice dredging in my area, with dredge disposal management area listed on the bid. It's accessible from what I can tell on the maps but labeled as "District-Owned" and overseen by General Contractor/Engineer. Has anyone hunted a site like this in Florida? It's essentially a dredge spoil island with management. If so, did you wait for the project to finish and come in after? Approach the site manager? Hunt it without permission? Thank you for any insight, it's greatly appreciated!
  17. Shark tooth fo ID

    Hello! Is it possible to ID? Tooth is broken but has slightly interesting shape. Western Ukraine, Lviv region.
  18. Galeocerdo tooth?

    Hello! Help with Id please. Western Ukraine, Lviv region. I found before G.aduncus but aduncus has another serration. Or Iam wrong? Thanks in advance! Kolya
  19. Ideas on what it is and what kind?? Thanks!
  20. Shark tooth for ID ?

    Hello! Help with ID,please. Ukraine, Lviv region. Thanks in advance!
  21. I took a little trip to Florida with a friend who needed help cleaning out her parents house in Venice. So while it was a working trip (with lots of emotion all rolled into it) I got the chance to do a little bit of fossil hunting - dragged my friend along to get her out of the house and have a little fun amidst the difficulty. We tried to get out at low tide in the mornings, but since it was still dark at 6:30am, we didn't ever really get to do any serious hunting, just picking stuff up along the shore line. But i am super thrilled with the few items I did find. No megs, alas, but didn't expect any either, since my fossil hunting time was limited. I'm just happy to have found some cool stuff! Venice is a beautiful little town with lovely beaches. .We hit four different beaches and I found stuff on all of them. The best shark tooth hunting was definitely at Caspersen Beach, to the south, but I found teeth from Nokomis to Venice to Caspersen, plus lots of other goodies along the way. Another pleasant surprise was the plethora of Pliocene shells I found at a bayou where we went to eat lunch. Fried Gator and fossils! hahahha! A question for y'all....are these shells actually fossilized or are they just FROM the pliocene? These were found in the dirt, not along the waters edge. I read about the geology and that whole area is a Pliocene shell bed. But are the shells actually replaced with minerals or are they just really really old? I look forward to someday visiting Venice again, perhaps going out on a dive to find meg teeth or hit up a couple of spots where you can dig for them (which sadly I did not get to do this time). But Florida sure is lovely...... The whole hoard: Just beach finds: Sunset at Venice Beach the Bayou enoying a Jamaican Ginger Beer poolside.... my two best shark teeth I think this is a hammerhead tooth: all the teeth I found: Two best stingray barbs: Big one is 1 1/2 iches Stingray mouthplate : I think this might be a small vertebra? My favorite of the big shells: Pretty sure this is turtle: I also have some bits and pieces of things i can't quite identify. I'll post those in the ID section.
  22. I managed to get in a few hours before the rain hit at the North Sulphur River Texas. My buddy found a rare Globidens tooth. I found a high quality shark tooth and some coprolite.
  23. Heterodontus tooth?

    Hello! Is it Hetereodontus tooth, or something else? Ukraine, Lviv region.
  24. Shark tooth (ID)

    Hello! I found few teeth and one of them with some striation. Could it be Striatolamia sp.? Or some others genus ay have something like this? Lenght 15 mm. Ukraine, Lviv region.
  25. Hello there fossil forum! This post will actually contain some of my finds from 2 trips to the same location, namely the island of Bornholm in Denmark. I went there this summer, and made quite an interesting discovery, which I will get back to, and then went on yet another trip, which I got home from less than a week ago. I doubt many of you know about it, unless you're Danish or have an interest in the geology of Denmark, but most of Denmark was underwater for pretty much all of the Mesozoic era. That is, of course, with the exception of Bornholm, which is a geologist's/paleontologist's/amateur fossil collector's dream. Denmark is not well known for any dinosaur fossils whatsoever, except from a few teeth found in the Robbedale Formation, and a bunch of foot-prints scattered along the west and south-coast of Bornholm. As recent as last year in April though, someone discovered the very first dinosaur bone in Denmark, at Hasle Beach, Bornholm. It's supposedly from a young sauropod, and is still being studied at this very moment. After I heard of the discovery, I desperately wanted to go to Bornholm. So I went there for 5 days in July, and 7 days in October, where the second time, I brought some of my friends from my heavy metal band along with me. On the first trip, the very first day at Hasle Beach, I searched for about 5 hours along the beach, with not a single fossil in sight. Just as I was about to leave the beach to get something to eat, I stumbled upon a very odd looking rock. Which obviously wasn't a rock, it was a bone: It measured about 6x5x6 (LxWxH) cm. I brought this into the museum located at the island, called "Naturbornholm", which is where a lot of the fossils found on the island are showcased. I had some of the people from the museum take a look at it, and they agreed on that this was definitely bone. What was very unlikely about this bone however, is that it looks like the end of a limb-bone, meaning it probably wasn't a plesiosaur, but something that was able to walk on land. In Denmark there's a law concerning fossils, saying that if the fossil could be valuable to science, it is obliged to deliver it to the Geological Institute of Copenhagen for research. The bone is currently being examined and studied. I still haven't received any new information regarding the bone. However they have said, that there's a good chance it's probably from either a crocodile, turtle or dinosaur. Whatever the species might be, it is most likely also a new species, as most of the bone material found at Hasle are plesiosaur bones. I went digging in the exact same area for the rest of the days, in hope of finding other bone-pieces. The picture below shows other pieces I found, which according to the museum, are bone fragments. Some of them are very worn though, and covered with conglomerate and iron. They are in no way as well preserved as the slightly worn bone piece I found on the first day: Other than those, I found another piece of bone, however it is very hard to tell what it is from. I'm considering trying to open up the lump of sandstone, however the black layer of bone material is fragile. The picture quality might be bad on this one, but I can assure you, it is not coal or mineral: So after the first trip to the island of Bornholm, I was invited over there by some of the people from the museum in the autumn holiday. I brought some of my bandmates with me as well, in an attempt to up the amount of fossils we'd find. And we did find a lot of stuff. On the first day we started out slow. The guitarist from my band was the first person to find a fossil. He found a small tooth, which might be from a type of bony fish. We're currently talking with one of the paleontologists of the Geological Institute, who wants to have a look at it in person. It measures about 5 mm, and was cracked in half when found, but afterwards repaired. The second day, we went out digging up on the more northern side of Hasle Beach, where the cliff is a bit taller. We didn't find much though. The other guys went back to the hut after a few hours, and I worked my way back to the spot where I had been digging during the summer. Shortly after, I found a small fragment of bone, most likely a rib-fragment. It's probably not from a plesiosaur though, as all the plesiosaur ribs found on the beach are usually very round, and not flat. The next day, we all went to the museum, showing a few of the fossils we had found to the people we knew there. Other than that we took a look at all the awesome finds exhibited at the museum. Including 2 of the dromaeosauroides bornholmensis teeth found in the Robbedale Formation (1 of them was a replica though). Most of the dinosaur fossils found, as showcased by the museum, are trace-fossils. Dinosaur-tracks and coprolites, with the exception of the dromaeosaur teeth. However those are from the early cretaceous period (140 million years ago), while the place where we were digging, Hasle Beach (The Hasle Formation), is about 170-180 million years old. Later I went digging again the same day. Some of the others didn't feel like digging, so I went out alone. I searched in about the same area where I had found the bones last year, and got really lucky once again. First I found a nice jet-black hybodont shark tooth, measuring about 9 mm in length. Then a piece of fossil wood/branch shortly after. 2 hours after the last find, I decided to go back to the cabin we had rented not far from the beach, and once again I was super lucky, and then stumbled upon a large bone-piece! A plesiosaur paddlebone, measuring about 4x4x1 cm! The fourth day, the other guys wanted to get back in the game after showing them the paddlebone. The next day we found a couple of odd pieces, mostly shells, but also another tooth, this time it was a chimaera tooth. On the fifth day, we went to a slightly different location, about 4 km further south of Hasle Beach, at a place called "The Pyrite Lake", where there's an abundance of plant-fossils, but there has also been found a couple of plesiosaur teeth there, as well as large dinosaur tracks. These tracks, as shown at the museum, are not negatives however, but a "positive". As in, when the creature made the track, the track was filled up with mud or another sediment later, basically making a 'positive' "sculpt" of the foot so to speak. At the Pyrite Lake, we found some huge chunks of fossil wood. Some a tad too heavy to carry around in a rucksack. We did however also spot a very interesting-looking rock, that shared a big resemblance to the dinosaur-tracks at the museum. We sent the coordinates of this rock to the people at the museum, and they're gonna send a paleontologist out to take a look at it at some point, to try and determine, if it is indeed a dinosaur track. So it's going to be interesting to see, if this truly was made by a prehistoric animal, or if this is just a very funny looking rock. On the sixth, and last day of digging, we found a lot of odd looking fossils by Hasle Beach again, which we could not identify. One may have been a bigger, but crushed, hybodont tooth, trapped within a lump of sandstone. And another could be a rib or just some plant-material. Either way, we left a lot of the fossils at the museum, for them to take a look at, if any of it should hold any interest to them, or to the people of the Geological Institute of Copenhagen.
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