Fossils and Geologic Time Scale

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Across
  1. 2. is the process of determining an age on a specified chronology in archaeology and geology
  2. 3. the process by which organic matter exposed to minerals over a long period is turned into a stony substance
  3. 5. relating to or denoting the most recent era, following the Mesozoic era and comprising the Tertiary and Quaternary periods.
  4. 8. is a process of fossilization in which mineral deposits form internal casts of organisms
  5. 11. the conversion of organic matters like plants and dead animal remains into carbon through destructive distillation.
  6. 12. a fossil that is useful for dating and correlating the strata in which it is found.
  7. 13. preserved from being trapped in ice or tar; getting most or all of the body of the organism.
  8. 14. relating to or denoting the era between the Precambrian eon and the Mesozoic era.
  9. 15. a fossil of a footprint, trail, burrow, or other traces of an animal rather than of the animal itself.
Down
  1. 1. is an axiom that forms one of the bases of the sciences of geology, archaeology, and other fields pertaining to geological stratigraphy
  2. 4. the action or process of replacing someone or something
  3. 6. of a species, family, or other groups of animals or plants having no living members; no longer in existence.
  4. 7. any of various hard natural resins usually found in the earth as exudates of trees long dead
  5. 9. is the science of determining the relative order of past events, without necessarily determining their absolute age.
  6. 10. relating to or denoting the era between the Paleozoic and Cenozoic eras, comprising the Triassic, Jurassic, and Cretaceous periods.