Contents 1 Notable tar pits 2 Paleontological significance 3 Living organisms 4 See also 5 References

Notable tar pits[edit] Main article: List of tar pits Major tar pits include Binagadi asphalt lake, the La Brea Tar Pits, the Carpinteria Tar Pits, the McKittrick Tar Pits, Pitch Lake, and Lake Bermudez.

Paleontological significance[edit] Animals usually cannot escape from the asphalt when they fall in, making these pits excellent places to excavate bones of prehistoric animals. The tar pits can trap animals because the asphalt that seeps up from underground forms a bitumen pit so thick that even mammoths could not free themselves before they died of starvation, exhaustion from trying to escape, or exposure to the sun's heat. Over a million fossils have been found in tar pits around the globe.[2] For other rich deposits, fossilized where they occurred, see Lagerstätten.

Living organisms[edit] Living bacteria have been found in the La Brea Tar Pits. These organisms have been shown to be strains of previously discovered bacteria. They have been able to survive and thrive in an environment with little water and little to no oxygen. Scientists started looking for the bacteria when they noticed bubbles of methane coming out of the tar pits.[3] Other microorganisms have been found living in microliter-sized droplets of water recovered from Pitch Lake in Trinidad, including bacteria from the orders Burkholderiales and Enterobacteriales.[4] Helaeomyia petrolei, the petroleum fly, spends its larval stage within the tar pit.

See also[edit] Formerly Lake Asphaltites for the Dead Sea (name coined by Titus Flavius Josephus)

References[edit] ^ "A gravity investigation of the Pitch Lake of Trinidad and Tobago". Geological Society of Trinidad and Tobago. Archived from the original on January 31, 2010. Retrieved August 28, 2010.  ^ a b Perkins, Sid. "South America's sticky tar pits". Science News For Kids. Retrieved May 5, 2012.  ^ "Bubble, bubble, oil and...bacteria!". Science Buzz. May 31, 2007. Retrieved May 4, 2012.  ^ Madhusoodanan, Jyoti (August 8, 2014). "Microbes in a Tar Pit". The Scientist. Retrieved August 14, 2014.  This geology article is a stub. You can help Wikipedia by expanding it. v t e Retrieved from "" Categories: Asphalt lakesPetroleum geologySedimentologyGeology stubsHidden categories: Articles needing additional references from December 2009All articles needing additional referencesAll stub articles

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