geologic period

PERMIAN
CAMBRIAN
DEVONIAN
JURASSIC
SILURIAN
TRIASSIC
PALEOGENE
CRETACEOUS
ORDOVICIAN
CARBONIFEROUS
List of words for the clue geologic period from the crossword:
EON ERA EONS EPOCH ERAS AEON AGE NEOCENE ICEAGE EPOCHS AZOIC LENT CENE EOCENE IRONAGE YEAR AEONS TERM DAY PHASE
WordClue
AGEera, period
ERAperiod, epoch
NAPshort period of sleep
LULLperiod of rest
STILLperiod of calm
VIGILPeriod of intentional sleeplessness
FREEZEperiod of intensely cold weather
PERIODOrdovician or Silurian
SEASONinterval, period
INFANCYperiod of childhood
DOWNTIMEperiod when a system is unavailable
INTERVALperiod, pause
TIMESPANperiod
POLEgeographic or magnetic
SERIESgeometric or time