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Biology
Alfred Garcia
17 September, 18:40
How does tar fossils form
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Susie Q
17 September, 20:57
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Formed by crude oil seeping through fissures in the earth the lighter elements of the oil evaporate leaving thick sticky asphalt. The pits are famous for the number and high quality of Pleistocene fossils that have been pulled from the pits. The fossils date between 10 and 40 thousand years old. Asphalt is an excellent preservative. Bones, teeth, shells, the exoskeletons of insects, and even some plant seeds have been pulled from the pits and many saber tooth cats.
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