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Showing results for tags 'white shark'.
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From the album: Fossil Finds
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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.- 2 comments
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- baby great white
- carcharodon
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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.
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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.-
- baby great white
- carcharodon
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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.-
- baby great white
- carcharodon
- (and 11 more)
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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.-
- baby great white
- carcharodon
- (and 11 more)
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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.-
- baby great white
- carcharodon
- (and 11 more)
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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.-
- baby great white
- carcharodon
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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.
- 2 comments
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- carcharodon
- carcharodon hastalis
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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
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- arequipa
- carcharodon
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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.-
- arequipa
- carcharodon
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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.-
- carcharodon
- carcharodon carcharias
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From the album: Sharks
Historically known as "makos", we now recognize C. hastalis as being ancestral to the modern great white shark.-
- carcharodon
- carcharodon hastalis
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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.-
- bahia inglesa
- caldera basin
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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.-
- bahia inglesa
- caldera basin
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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.-
- carcharodon
- carcharodon carcharias
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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.
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- carcharodon
- carcharodon hubbelli
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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.
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- carcharodon
- carcharodon carcharias
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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.
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- bahia inglesa
- carcharodon
- (and 6 more)
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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.
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- carcharodon
- carcharodon carcharias
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From the album: Sharks
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- carcharodon
- carcharodon hubbelli
- (and 10 more)
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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.
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- north carolina
- shark tooth
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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-
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- carcharodon hastalis
- cosmopolitodus hastalis
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From the album: Sharks
Narrow variant of the white shark, C. hastalis.-
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- carcharodon hastalis
- cosmopolitodus hastalis
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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.