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