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