This Specimen has been sold.
1.76" Colorful White/Mako Shark Tooth Fossil - Sharktooth Hill, CA
This is a lower, fossil shark tooth found at Sharktooth Hill near Bakersfield, CA. It could either be from Carcharodon (Isurus) planus or Carcharodon (Isurus) hastalis but the lower teeth of these two sharks are indistinguishable. It comes from a specific site that produces some really colorful teeth. Quite impressive for a tooth that's 15.5 million years old.
This shark, whose teeth can be found in deposits worldwide, lived from the Eocene to the Pleistocene. It had been historically classified as a broad-toothed mako shark(Isurus hastalis). It was then reclassified as Cosmopolitodus hastalis, making it a type of extinct mackerel shark.
More recent research has reclassified it as part of the white shark lineage, which would rename the species to Carcharodon hastalis. You can read more about this here. What classification is correct is still under debate, leading to lots of different labels for these teeth. We prefer the most recent interpretation and label them as Carcharodon hastalis.
Teeth of this shark have been found up to 3 1/2 inches in length but teeth over 2 1/2 inches are uncommon and very rare over 3 inches.
More recent research has reclassified it as part of the white shark lineage, which would rename the species to Carcharodon hastalis. You can read more about this here. What classification is correct is still under debate, leading to lots of different labels for these teeth. We prefer the most recent interpretation and label them as Carcharodon hastalis.
Teeth of this shark have been found up to 3 1/2 inches in length but teeth over 2 1/2 inches are uncommon and very rare over 3 inches.
Sharktooth Hill is located in the foothills of the Sierra Nevada Mountains near Bakersfield, California. It represents an exposure of the Temblor Formation, a middle-Miocene marine deposit. 15 million years ago the sea levels were substantially higher, and central California was covered by what is known as the Temblor Sea.
Two highly fossiliferous bone beds in the formation were created when fossils originally deposited at the bottom of the sea eroded out of the rocks, were concentrated by ocean currents, and subsequently reburied. Because the fossils in these bone beds are reworked, only isolated teeth and bones are found in these beds.
Today, the original Sharktooth Hill is a National Natural Landmark, but private property surrounding it contains operational pay-to-dig fossil quarries.
Two highly fossiliferous bone beds in the formation were created when fossils originally deposited at the bottom of the sea eroded out of the rocks, were concentrated by ocean currents, and subsequently reburied. Because the fossils in these bone beds are reworked, only isolated teeth and bones are found in these beds.
Today, the original Sharktooth Hill is a National Natural Landmark, but private property surrounding it contains operational pay-to-dig fossil quarries.
SPECIES
Carcharodon (Isurus) sp.
LOCATION
Sharktooth Hill, Bakersfield, CA
FORMATION
Temblor Formation
SIZE
1.76" long
CATEGORY
SUB CATEGORY
ITEM
#114039
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