Time Scale

1. List all of the geologic periods in order from oldest to current. (Cambrian to Quaternary)
2. Since the extra credit question is so hard, come up with a mneumonic to help you remember it.



(Oldest to current)

• Precambrian

• Cambrian

• Ordovician

• Silurian

• Devonian

• Carboniferous

• Permian

• Triassic

• Jurassic

• Cretaceous

• Tertiary

• Quaternary
  

Pre Cam Ord Sil Dev Carbo Permian Tri Jur Cre Ter Qua