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