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  1. ThePhysicist

    Galveston shark teeth

    From the album: Galveston Fossils

    Found 3 teeth this weekend trip. Galveston shark teeth are very hard to find (for me). These were all found on the main island (not Bolivar). The top two I believe are the sandbar shark (C. plumbeus) and the lower one is a tiger shark (G. cuvier).
  2. ThePhysicist

    Bull shark tooth (3)

    From the album: Sharks

  3. ThePhysicist

    Bull shark tooth (2)

    From the album: Sharks

  4. We often see pathological shark teeth. This paper reports on double tooth pathologies in the lamniform and carcharhiniform sharks Otodus megalodon and Carcharhinus leucas https://peerj.com/articles/12775/
  5. Jerrychang

    Small shark teeth from SC

    Just acquired a small shark tooth, but not sure about the species. Need some help with identifying this one. It is serrated but not so obvious. I think it might be hammerhead, lemon shark, or carcharhinus sp?
  6. ClearLake

    Small Lee Creek Shark Tooth

    I received some matrix from @sixgill pete a while back in a TFF auction and picked most of it a while back and ID'd the bulk of the teeth and other material. Lately I have been going back through some of my sharks teeth and looking more closely at items I was unsure of These three teeth are one such group out of this matrix. I have read Purdy et, al (2001) a bunch of times, looked at elasmo.com for hours on end, read dozens of threads on here and am still a bit confused/uncertain. So, I figured why no just ask and get several more opinions, I always appreciate what folks here have to offer
  7. ClearLake

    Carcharhinus signatus

    From the album: Gainesville Florida Microscopic Miocene

    Sharks of the genus Carcharhinus are the most common find in the stream gravel. Due to tremendous variability within the genus, it is difficult to assign a species to these teeth, but these are unique enough to feel somewhat confident is the C. signatus designation.
  8. Ludwigia

    Carcharhinus brachyurus (Gunther 1870)

    From the album: Pisces

    Slant length 18mm. Miocene Burdigalian. Meco Beach, Sesimbra, Lisbon Region, Portugal. Thanks to Vieira for the trade.
  9. Ludwigia

    A few more shark teeth

    The weather was great today, so I hopped on the bike and headed off to check out a new museum in the area which was supposed to have opened up on April 1st, but I guess it must have been an April Fool's joke because it was closed. Well, actually we got locked down on Monday, so they weren't allowed to open the doors. I was just hoping, and anyway it was a nice day for a ride. It's a small branch of the well-known and much larger Hauff Museum in Holzmaden, so one of these days soon (hopefully), I'll drop in again to have a look around and talk shop with the proprietors. After I'd studied t
  10. I've been going through my shark tooth collection recently trying to refine my ids. This one here has me somewhat stumped. I had identified it as Carcharhinus priscus, but I'm not at all sure any more and am now starting to wonder if it may be a chub or great white. The first photo, which I think is the labial view, seems to fit, but what I believe to be the lingual view (2nd photo) has me confused. The tooth is from the southern German Miocene Burdigalian. Slant length 15mm. Any advice here would be appreciated.
  11. hemipristis

    Carcharhinus altimus tooth?

    South Florida Beach Find. Pretty sure it's genus Carcharhinus. Elongate, curved blade, singular notch and root configuration has me thinking C. altimus (bignose shark). C. acronotus was also similar, but that species tends to be small (<5 ft), apparently. The tooth is 13-14mm in vertical height, which seems a bit large for a 5-foot Carcharhinid. Thoughts?
  12. Smith, V., 2015. Species discrimination in Carcharhinus shark teeth using elliptic Fourier analysis (Doctoral dissertation, Tulane University School of Science and Engineering). https://www.researchgate.net/publication/316735477_Species_discrimination_in_Carcharhinus_shark_teeth_using_elliptic_Fourier_analysis In part, the abstract reads: "Sharks of the genus Carcharhinus are commonly represented in fossil assemblages by isolated teeth. Neogene fossil teeth from this genus have been identified by many authors as belonging to extant speci
  13. SharkySarah

    Super tiny requiem shark tooth?

    From the Calvert formation. Ruler in metrics
  14. fossilsonwheels

    STH Micros in need of ID help

    I am fairly comfortable with the STH micros as far as identification goes but I found a few things that I need some help with. First up is one that I am 90% sure on the ID but I want to be sure. I believe I found a couple of Raja teeth. The first one I found looks to be complete and tiny, a little over 1mm. I know skate teeth are somewhat uncommon in this fauna and this would be my first one.
  15. Ludwigia

    Carcharhinus priscus (Agassiz 1843)

    From the album: Pisces

    Slant length 9mm. Upper lateral Burdigalian, Miocene Obere Meeresmolasse Formation From the NW Lake of Constance area.
  16. Ludwigia

    Carcharhinus priscus (Agassiz 1843)

    From the album: Pisces

    Root length 1cm. Lower lateral Burdigalian, Miocene Obere Meeresmolasse Formation From the NW Lake of Constance area.
  17. Ludwigia

    Carcharhinus sp. (Blaineville 1816)

    From the album: Pisces

    15mm. Burdigalian Miocene OMM Formation Found near the Lake of Constance
  18. Hello, I am currently re-sorting my collection and this brings up some questions about some modern shark teeth. For example, I found two teeth of this appearance. At first glance, I would suspect a Carcharhinus species (like C. falcifromis, but the teeth look different) , but I don't know which. Unfortunately, I don't find any comparable teeth in the Internet. Even if this isn't a fossil this time, I hope that you can help me again. The tooth is 1,3cm (0,51") in size and from the philippines. Best regards from Germany!
  19. Hello Everyone, I've been busy with the kayak and doing some hiking to boot. Funny thing is .. you never know what you are going to just walk right up on sitting pretty after a low tide falls away. 3 mile-ish hike there and back with three miles of paddling .... (this guy was lying in the middle of it) Probably has been buried under the soft sand waiting just beneath the surface. Just shy of 6 inches I love it .. warts and all. In situ ... In hand .. Some really great Carcharhinus teeth lately ... they haven't been jet bl
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