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Showing results for tags 'carcharodon hubbelli'.
Found 8 results
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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 ar -
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.
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From the album: Sharks
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From the album: Misc. Cenozoic Specimens
Carcharodon hubbelli. -
Recently, I've taken an interest in transitional shark teeth. I found this the other day listed as Carcharodon hubbelli from Peru. I'm very interested if the ID is correct. It is certainly closer to C. carcharias than I./C. hastalis, but hubbelli does seem plausible to me. Just want to be sure before I buy it.
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From the album: Great White Shark and Ancestors
This is a 2.8" tooth from Chile of the transition species between the ancient broad-toothed mako and great white shark. Notice the serrations along the superior portion of the tooth that gradually decrease towards the point, and is non-serrated near the tip. Here are a couple of lines borrowed from the Buried Treasure Fossils website about this transition tooth: "C. carcharias transition teeth have recently been renamed to C. hubbelli in honor of Gordon Hubbell who found a complete jaw / partial skeleton in Peru. This find also further solidifies popular opinion that the Great White shark i© ©
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From the album: Great White Shark and Ancestors
This is a 2.8" tooth from Chile of the transition species between the ancient broad-toothed mako and great white shark. Notice the serrations along the superior portion of the tooth that gradually decrease towards the point, and is non-serrated near the tip. Here are a couple of lines borrowed from the Buried Treasure Fossils website about this transition tooth: "C. carcharias transition teeth have recently been renamed to C. hubbelli in honor of Gordon Hubbell who found a complete jaw / partial skeleton in Peru. This find also further solidifies popular opinion that the Great White shark i© ©
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From the album: Great White Shark and Ancestors
This is a 2.8" tooth from Chile of the transition species between the ancient broad-toothed mako and great white shark. Notice the serrations along the superior portion of the tooth that gradually decrease towards the point, and is non-serrated near the tip. When you put this tooth between an equivalent ancient mako and great white tooth, it is hard to argue that there is not evolutionary flow in from of your eyes. I am in the process of aquiring similar sized ancient mako and great white from the same location. I will post those once they are in my collection. Here are a couple of lines© ©
