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