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  1. M3gal0don_M4n

    Yet another mysterious Shark tooth.

    Hello. I am here with another unknown shark tooth. This one I personally found. For a while I believed it to be from Hastalis, but I have doubts after searching it up. It is around 5-3 million years old. It was also found alongside what I believe to be a Scylirhinoid vertebrae.
  2. ThePhysicist

    Great White Shark Tooth (Neonate)

    From the album: Sharks

    Carcharodon carcharias (Neonate) Pisco Formation, Departamento de Arequipa, Sitio Sacaco, Peru Right Upper Lateral A small tooth from a young-of-the-year great white (~ 1.5 m / 5 ft total length). Teeth of these very young individuals are narrower than adult teeth, and possess lateral "cusplets" - features that aid in their piscivorous (fish-dominated) diet.
  3. ThePhysicist

    Great White Shark Tooth (Young Juvenile)

    From the album: Sharks

    Carcharodon carcharias (Young Juvenile) Pisco Formation, Departamento de Arequipa, Sitio Sacaco, Peru 2nd? Left Upper Anterior A small tooth from a very young great white (< 2 m / 7 ft total length). Teeth of these very young individuals are narrower than adult teeth, and can possess lateral "cusplets" - features that aid in their piscivorous (fish-dominated) diet.
  4. ThePhysicist

    Great White Shark Tooth (Neonate)

    From the album: Sharks

    Carcharodon carcharias (Neonate) Pisco Formation, Departamento de Arequipa, Sitio Sacaco, Peru 2nd Left Upper Anterior A small tooth from a young-of-the-year great white (~ 1.5 m / 5 ft total length). Teeth of these very young individuals are narrower than adult teeth, and possess lateral "cusplets" - features that aid in their piscivorous (fish-dominated) diet.
  5. ThePhysicist

    Great White Shark Tooth (Neonate)

    From the album: Sharks

    Carcharodon carcharias (Neonate) Pisco Formation, Departamento de Arequipa, Sitio Sacaco, Peru Lower Lateral A small tooth from a young-of-the-year great white (~ 1.5 m / 5 ft total length). Teeth of these very young individuals are narrower than adult teeth, and possess lateral "cusplets" - features that aid in their piscivorous (fish-dominated) diet.
  6. ThePhysicist

    Great White Shark Tooth (Neonate)

    From the album: Sharks

    Carcharodon carcharias (Neonate) Pisco Formation, Departamento de Arequipa, Sitio Sacaco, Peru 2nd Right Lower Anterior A small tooth from a young-of-the-year great white (~ 1.5 m / 5 ft total length). Teeth of these very young individuals are narrower than adult teeth, and possess lateral "cusplets" - features that aid in their piscivorous (fish-dominated) diet.
  7. ThePhysicist

    Great White Shark Tooth (Neonate)

    From the album: Sharks

    Carcharodon carcharias (Neonate) Pisco Formation, Departamento de Arequipa, Sitio Sacaco, Peru 3rd Right Upper (Intermediate) A small tooth from a newborn great white shark (~ 1.5 m / 5 ft total length). This is a rare intermediate tooth which is mesially-slanted, and reduced in size relative to adjacent teeth. The smaller size of the 3rd upper anterior is an adaptation unique to the dentitions of Lamniforms, thought to concentrate the bite force in the first two upper anteriors.
  8. 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.
  9. ThePhysicist

    Neonatal Great White Shark Tooth

    Identification Teeth of Carcharodon carcharias may be identified by triangular crowns with no nutrient groove in the root, no lingual dental band ("bourlette"), and irregular triangular serrations on the edges. Teeth of neonatal individuals (newborn/young of the year) possess small lateral "cusplets," with a deep "V" profile made by the root lobes, and are more narrow than adult teeth1. This narrow tooth form with cusplets is suited for the great white's piscivorous (fish-dominated) diet at a young age. Comments This is an exceptional upper right lateral tooth from a newborn or full-term embryo great white ( ~ 1.5 m / 5 ft total length). This tooth was exported from Peru prior to 1990. References 1. Tomita, T., Miyamoto, K., Kawaguchi, A., Toda, M., Oka, S.-I., Nozu, R. and Sato, K. (2017), Dental ontogeny of a white shark embryo. Journal of Morphology, 278: 215-227. https://doi.org/10.1002/jmor.20630
  10. ThePhysicist

    Great white shark tooth

    From the album: Sharks

    Cool bichrome great white tooth from the Early Pliocene of Southern Peru. Fossils are now illegal to export from Peru, this one was collected prior to 1990 under a Peruvian government permit by the BHI.
  11. ThePhysicist

    Great white shark tooth (juvenile)

    From the album: Sharks

    Lower tooth from an early great white (Early Pliocene). Juvenile teeth are narrower than those of adults, more suited to a piscivorous (fish-eating) diet. Fossils are now illegal to export from Peru, this one was collected prior to 1990 under a Peruvian government permit by the BHI.
  12. 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.
  13. ThePhysicist

    Great white shark tooth

    From the album: Sharks

    One of the most coveted teeth due to the great white's popularity. Being one of my favorite animals, I knew I had to get a nice one eventually. This one in particular is special. Besides being in superb condition, this tooth has a bite mark on the root: three parallel grooves on the labial side of the root gouged by serrations. Bite marks on teeth are uncommon, and a neat feature on this already sweet tooth. This tooth is from the desert of northern Chile. Fossils from Chile are now illegal to export, so as an ethical collector you need to make sure that any Chilean fossils you are interested in were exported prior to the ban.
  14. ThePhysicist

    Carcharodon hubbelli tooth

    From the album: Sharks

    White sharks used to have smooth-edged teeth. They eventually evolved serrations as their diets transitioned to marine mammals from fish. This shark was a transitional form between the smooth-edged predecessors and the modern fully-serrated great white. The serrations on this tooth are not worn-down. C. hubbelli serrations are naturally finer, typically decrease in size towards the tip, and are oriented towards the tip. This tooth is from the desert of northern Chile. Fossils from Chile are now illegal to export, so as an ethical collector you need to make sure that any Chilean fossils you are interested in were exported prior to the ban.
  15. ThePhysicist

    Great white shark tooth

    From the album: Sharks

    Nice color on this early great white shark tooth (Early Pliocene). This one comes from the desert of southern Peru, where a long period of sand blasting has smoothed this tooth to a near-polish, all but erasing the serrations. Fossils are now illegal to export from Peru, this one was collected prior to 1990 under a Peruvian government permit by the BHI.
  16. ThePhysicist

    Hubbell's White Shark Tooth

    Identification Teeth of C. hubbelli are morphological intermediates between C. hastalis and the extant species C. carcharias. They all possess erect triangular cusps, no nutrient groove, and a thin to no lingual dental band ("bourlette"). C. hubbelli exhibits transitional serrations which are finer/weaker than those of the extant species, and diminish in size apically.1 This feature may be confounded with the same pattern in nascent C. carcharias.2 C. hubbelli may be confused with C. subserratus (escheri), however they can be easily distinguished by their geographic distributions. C. hubbelli is exclusively found in the Pacific, while C. subserratus (escheri) is only found in the Northern Atlantic and Mediterranean.1 References 1. Ehret, D.J., Macfadden, B.J., Jones, D.S., DeVries, T.J., Foster, D.A. and Salas-Gismondi, R. (2012), Origin of the white shark Carcharodon (Lamniformes: Lamnidae) based on recalibration of the Upper Neogene Pisco Formation of Peru. Palaeontology, 55: 1139-1153. https://doi.org/10.1111/j.1475-4983.2012.01201.x 2. Hubbell G. (1996), Using tooth structure to determine the evolutionary history of the white shark. In: Klimley AP, Ainley DG, editors. Great White Sharks: The Biology of Carcharodon carcharias. San Diego: Academic Press. pp 9–18.
  17. ThePhysicist

    Great White Shark Tooth

    Identification Teeth of Carcharodon carcharias may be identified by erect, triangular crowns with no nutrient groove in the root, no lingual dental band ("bourlette"), and irregular triangular serrations on the edges. Comments This tooth is Early Pliocene in age, which is about as old as great white shark fossils get. Fossils are now illegal to export from Peru. This tooth was collected by the BHI during a series of expeditions to Peru 1985-1990 under a government permit.
  18. ThePhysicist

    Great White Shark Tooth

    Identification Teeth of Carcharodon carcharias may be identified by erect, triangular crowns with no nutrient groove in the root, no lingual dental band ("bourlette"), and irregular triangular serrations on the edges. Comments This tooth has a self-inflicted bite mark in the form of three parallel linear gouges in the labial face of the root made by serrations of another tooth.
  19. ThePhysicist

    Juvenile Great White Shark Tooth

    Identification Teeth of Carcharodon carcharias may be identified by erect, triangular crowns with no nutrient groove in the root, no lingual dental band ("bourlette"), and irregular triangular serrations on the edges. Teeth of juveniles are smaller in size, and are comparatively narrower than adult teeth, suited for a piscivorous diet. Comments This tooth is Early Pliocene in age, which is about as old as great white shark fossils get. Fossils are now illegal to export from Peru. This tooth was collected by the BHI during a series of expeditions to Peru 1985-1990 under a government permit.
  20. Chabba

    Topsail, NC shark tooth

    Hi Folks, Been a reader of these boards for a long time and appreciate all of the great info shared here. I found this tooth at Topsail beach in NC this past summer and was hoping for some help with the ID. It not in great shape but leaning towards one of the extinct white sharks. Any thoughts would be appreciated.
  21. 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
  22. ThePhysicist

    Carcharodon hastalis (narrow-form)

    From the album: Sharks

    Narrow variant of the white shark, C. hastalis.
  23. Hi - I found this tooth on the tidal flats in Brewster in cape cod bay a few years ago and was wondering the exact same thing.
  24. Are these from the same or different sharks? Would love an ID and age. Found washed up on beach in Isle of Palms SC Thank you
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