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