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  1. 3. Asphalt is an Amazing Preservative. La Brea Tar Pits lab worker cleans asphalt from a 40,000-year-old bison bone. Los Angeles Almanac Photo. Asphalt is not easily removed from fossil remains, as La Brea Tar Pits paleontologists can tell you, but skeletal remains encased in it are kept in pristine condition.

  2. Jun 27, 2023 · The discoveries made at the La Brea Tar Pits during the 1920s and 1930s provided unprecedented insights into the prehistoric world of the Pleistocene epoch. The tar pits acted as natural traps, ensnaring unsuspecting animals that ventured too close to the sticky asphalt. The fossilized remains preserved within the tar offered scientists a ...

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  4. Apr 28, 2024 · La Brea Tar Pits, tar (Spanish brea) pits, in Hancock Park (Rancho La Brea), Los Angeles, California, U.S. The area was the site of “pitch springs” oozing crude oil that was used by local Indians for waterproofing. Gaspar de Portolá’s expedition in 1769 explored the area, which encompasses about 20.

    • The Editors of Encyclopaedia Britannica
  5. Nov 1, 2022 · La Brea Tar Pits is also the rare museum that is part of an active excavation site. Since 2006, the team has been working on Project 23, a collection of 23 boxes of fossil deposits retrieved when the neighboring Los Angeles County Museum of Art (LACMA) was constructing its underground parking garage. There’s also Pit 91, a summertime dig that ...

  6. The La Brea Tar Pits were located on part of a 4,400-acre Mexican land grant known as Rancho La Brea that was purchased by George Hancock in 1860. Credit: Wikimedia Commons/Public Domain In donating 23 acres of land containing the tar pits to Los Angeles County, Hancock stipulated that the site be preserved for future excavation and display of ...

  7. For these are the La Brea tar pits, containing one of the richest, best preserved, and best studied assemblages of Pleistocene vertebrates , including at least 59 species of mammal and over 135 species of bird . The tar pit fossils bear eloquent witness to life in southern California from 40,000 to 8,000 years ago; aside from vertebrates, they ...

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