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