Sharktooth Hill, on rare occasions, produces a Carcharodon tooth. There are two ways
of assessing the proper species. The traditional is to assume it's Pliocene material that has worked
its way into the exposure, the newer thinking questions the species itself.
In a scenario developed for the first opinion, these teeth originated from Carcharodon carcharias
(LINNAEUS, 1758) during the Pliocene. Channels created during that epoch
permited an accumulation of Pliocene material that was later exposed in otherwise Miocene deposits.
Unfortunately, associated material from the depositional environment of these teeth has not been
documented. The underlying logic for this position is that the tooth is C. carcharias, a Pliocene
species, therefore, the Miocene exposure has been "corrupted" with Pliocene material.
An alternative scenario suggests that the depositional observations are correct and that the teeth
were infact produced by a Miocene great white, a species more commonly refered to as Isurus
(Carcharodon) escheri AGASSIZ, 1843 . The wear observable on the
illustrated tooth precludes odontological hair-spliting, but it provides sufficient detail to argue that it
represents a design reflected by I. escheri teeth, the
Sacaco dentition
and the teeth being studied by Hideo Yabe.
Great White teeth are possibly the rarest teeth to come out of Bakersfield as only a handful have
been recovered and the imaged tooth may be the largest specimen found.
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Carcharodon sp. (escheri/carcharias)
slant height 7.8 cm (3-1/16"), width 5.7 cm |
Also see:
Lee Creek Carcharodon by Bill Heim
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