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Reading the ESRT

Reading the ESRT. Eon: Precambrian Is split into the: Archean and Proterozoic When was the first oxygen produced? Which organism produced it? When did oceanic oxygen first enter the atmosphere? When did the first sexually reproducing organisms evolve? How many years does one Represent?.

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Reading the ESRT

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  1. Reading the ESRT

  2. Eon: Precambrian Is split into the: Archean and Proterozoic When was the first oxygen produced? Which organism produced it? When did oceanic oxygen first enter the atmosphere? When did the first sexually reproducing organisms evolve? How many years does one Represent? Late archean Cyanobacteria or blue green algae Early proterozoic Middle proterozoic 500 million years

  3. Eon: the Phanerozoic What does one represent? 2. Which three era’s make up the phanerozoic? 100 million years Paleozoic, Mesozoic, Cenozoic

  4. First Life forms: What were they? Which time period? Stromatolites Middle Proterozoic

  5. The Paleozoic: Ancient Life… Is there a rock record in NY State for this era in Earth’s geologic history? How old is the coal we burn today? Which time period did it form in? Yes for the most part 300 million years Old, Pennsylvanian Carboniferous

  6. The Mesozoic: Middle Life Which life forms dominated the Jurassic period? Which events marked the beginning and end of this time period? The Dinosaurs 2 Mass Extinctions

  7. When did humans (similar to us) appear on the planet? During the Pleistocene- Quarternary Time period around 400,000 thousand years ago – Homo sapiens Hominid (human like) species evolved around 5,000,000 mya

  8. Index fossils: the remains of an organism that was widespread geographically, but lived for a short geologic time period… 1. Which index fossil marked the Quarternary? There is two… O=Beluga Whale and Mastodont S= Condor

  9. Index fossils A, B, and C belong to which family? Trilobites When did they become extinct? Can they be found in the bedrock around NY State? Where? End of the Permian No there is no rock record

  10. When did the last continental ice retreat? 10,000 ya

  11. The highest point in NY…

  12. Which family of organisms existed for the shortest time period? Placoderm Fish (Armored Fish)

  13. The Taconian Orogeny… Occurred during the Ordovician Period

  14. Which Mountains are part of this in NY State? Manhattan Prong, Taconic Mts, and Hudson Highlands

  15. Where was North America at the time of the Taconian Orogeny? On the equator

  16. Try these: 1 2 1.______ Eurypterid fossils are abundant in the Bertie dolostone, a sedimentary rock layer found in western New York State. The presence of both the eurypterids and the dolostone indicates that, during the formation of this rock layer, this region of New York State was (1) covered by evaporating shallow seas (2) uplifted and eroded (3) buried beneath lava flows (4) intensely metamorphosed 2. _____The division of Earth’s geologic history into units of time called eons, eras, periods, and epochs is based on • absolute dating techniques • fossil evidence (3) climatic changes (4) seismic data

  17. 3 3._____Which statement is best supported by the fossil record? (1) Fossils are found in nearly all rocks. (2) Fossils are found only in areas that were once under water. (3) Most early life-forms that left fossil remains are now extinct. (4) Most early life-forms that left fossil remains still exist today 4._____The map below shows the location of Grenville-age bedrock found in the northeastern United States. In which New York State landscapes is Grenville-age bedrock exposed at Earth’s surface? (1) Erie-Ontario Lowlands and St. Lawrence Lowlands (2) Catskills and Allegheny Plateau (3) Tug Hill Plateau and Atlantic Coastal Plain (4) Hudson Highlands and Adirondack Mountains 4

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