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