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