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