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