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