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