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