geologic time

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Across
  1. 1. remnant, impression, or trace of an animal or plant of a past geologic age that has been preserved in Earth's
  2. 4. describe, portray, or set forth with accuracy or in detail
  3. 6. the basic unit of the geologic time scale
  4. 7. the second longest portions of geological time
  5. 8. to find or calculate the quantity or amount of
Down
  1. 2. related organisms that share common characteristics and are capable of interbreeding\
  2. 3. the degree of association between two random variables
  3. 5. unit of geological time during which a rock series is depositeddescription of rock successions and their interpretation in terms of a general time scale.
  4. 7. the longest portions of geologic time