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