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Period when mammals first appeared
Crossword Clue
**We have found 6 answers to crossword clue "Period when mammals first appeared"**
**The Best Answer: 10/10**
Answer	Crossword Clue
TRIASSIC	Period when mammals first appeared
JURASSIC	Period when birds and mammals appeared
MIOCENE	When mammals appeared

EOCENE	Epoch when mammals appeared
EOCENE	Epoch when modern mammals appeared
TRIASSIC	Period when dinosaurs appeared

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.

Period when mammals first appearedCrossword Clue