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