Finding Time
Geological time: Eras and Periods
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CAINOZIOC
CAMBRIAN
CARBONIFEROUS
CRETACEOUS
DEVONIAN
JURASSIC
MESOZIOC
ORDOVICIAN
PALAEOZIOC
PERMIAN
PRECAMBRIAN
QUATERNARY
SILURIAN
TERTIARY
TRIASSIC
| W | H | T | F | K | E | R | T | R | I | A | S | S | I | C |
| A | Z | P | B | S | U | O | E | C | A | T | E | R | C | Z |
| S | R | C | O | I | Z | O | E | A | L | A | P | A | A | Q |
| M | H | G | R | I | D | T | V | T | Y | E | R | A | I | Z |
| A | F | Y | Q | A | Q | F | F | R | R | B | E | U | N | J |
| I | F | R | B | K | M | R | A | M | O | K | C | C | O | U |
| M | N | A | Q | B | B | I | I | N | R | C | A | T | Z | R |
| E | A | N | B | U | T | A | I | L | D | V | M | N | I | A |
| S | I | R | N | R | N | F | N | E | O | A | B | S | O | S |
| O | R | E | E | Z | E | N | V | W | V | L | R | Z | C | S |
| Z | U | T | J | R | O | O | O | Z | I | A | I | Y | F | I |
| I | L | A | O | C | N | X | Z | U | C | U | A | T | P | C |
| O | I | U | I | I | X | Z | X | D | I | N | N | Q | V | Y |
| C | S | Q | A | P | Z | Q | M | C | A | H | F | D | N | J |
| A | U | N | X | S | B | S | N | T | N | N | Y | G | U | T |
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