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