Asb 222 t Study guides, Class notes & Summaries
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ASB 222 TOP Exam Questions and CORRECT Answers
- Exam (elaborations) • 40 pages • 2024
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Earth ageAbout 4.6 billion years 
Universe10 billion years 
PrecambrianFirst major era of geological time, extending from the origins of earth to 
about 600 m.y.a 
PaleozoicThe appearance of the first vertebrate species: fish and amphibians 
Mesozoic eraAround 245 mya. The age of dinosaurs 
CenozoicPeriod of extinction, our current era. Divided into 7 epochs: 
Epochs (discussed on page 4)There are 7 epochs: Holocene, pleistocene, pliocene, 
miocene, oligocene, eocene, and paleocene (in order f...
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ASB 222 TOP Exam Questions and CORRECT Answers
- Exam (elaborations) • 40 pages • 2024
-
- $10.99
- + learn more
Earth ageAbout 4.6 billion years 
Universe10 billion years 
PrecambrianFirst major era of geological time, extending from the origins of earth to 
about 600 m.y.a 
PaleozoicThe appearance of the first vertebrate species: fish and amphibians 
Mesozoic eraAround 245 mya. The age of dinosaurs 
CenozoicPeriod of extinction, our current era. Divided into 7 epochs