'1 of the 3 Cs in the geological-period mnemonic "camels often sit down carefully--perhaps their joints creak..."'
Cretaceous (or Cambrian or Carboniferous)
EARTH: 1 of the 3 Cs in the geological-period mnemonic camels often sit down carefully--perhaps their joints creak...
1 of the 3 Cs in the geological-period mnemonic "camels often sit down carefully--perhaps their joints creak..."
1 of the 3 Cs in the geological-period mnemonic "camels often sit down carefully--perhaps their joints creak..."
EARTH
Cretaceous or Cambrian or Carboniferous
EARTH