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