Answer: stoneage

AnswerCrossword Clue
STONEAGE85 for Irving in 1988?
STONEAGEPrimitive
STONEAGEIt started about 2 1-2 million years ago
STONEAGEWise, catching shade in rocky stretch? (5,3)
STONEAGEEarly time
STONEAGEAlley Oop's time
STONEAGERocky period?
STONEAGENeolithic period
STONEAGECave man's era
STONEAGEMuch simpler time
STONEAGENeolithic time
STONEAGETime of the troglodytes
STONEAGEEarly time of man
STONEAGEEolithic period
STONEAGEPeriod of history
STONEAGEPrehistoric period
STONEAGENeanderthal's time
STONEAGEEarly period
STONEAGESmelting ended it
STONEAGEFred and Barney's time
STONEAGEAntediluvian
STONEAGERocky era?
STONEAGENeanderthals' heyday
STONEAGEThe Flintstones' era
STONEAGERocky period of history?
STONEAGEPrimitive era
STONEAGETime for a mammoth feast?
STONEAGEWhen the Flintstones lived
STONEAGEBarney and Fred's time
STONEAGEBarney and Fred's day
STONEAGEWhen the Lascaux caves were painted
STONEAGEVery primitive
STONEAGEPrimitive and backward
STONEAGE"The Flintstones" period
STONEAGEIt began with the Paleolithic period
STONEAGEThe Paleolithic period is part of it
STONEAGEPetroglyph period
STONEAGECaveman's era
STONEAGEWhen fire was harnessed
STONEAGEEra of the caveman