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