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