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
| N | X | D | Y | P | X | N | L | X | C | E | D | Z | R | R |
| C | S | I | L | U | R | I | A | N | A | O | R | O | X | Y |
| N | Q | U | A | T | E | R | N | A | R | Y | C | C | P | P |
| R | A | Y | O | O | E | X | W | B | P | G | B | O | D | R |
| I | S | I | C | R | X | R | D | Q | K | D | U | I | S | T |
| O | B | S | N | J | E | N | T | N | H | X | D | Z | U | R |
| I | R | C | N | O | P | F | A | I | W | A | W | O | O | I |
| H | N | F | D | A | V | X | I | I | A | U | U | E | E | A |
| Q | X | Z | S | M | Y | E | J | N | M | R | N | A | C | S |
| N | A | I | C | I | V | O | D | R | O | R | Y | L | A | S |
| R | H | P | T | X | K | D | J | U | M | B | E | A | T | I |
| L | J | N | A | I | R | B | M | A | C | E | R | P | E | C |
| F | V | R | J | U | R | A | S | S | I | C | U | A | R | A |
| D | G | N | C | Q | C | O | I | Z | O | N | I | A | C | C |
| E | H | O | N | M | E | S | O | Z | I | O | C | O | V | F |
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