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