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