M3E1S1O1Z10O1I1C3
21 points
MESOZOIC is validvalid
of or pertaining to a certain geologic time period [adj]
of the Secondary geological period, including the Triassic, Jurassic, and Cretaceous systems [adj]
of or pertaining to a certain geologic time period [adj]
of the Secondary geological period, including the Triassic, Jurassic, and Cretaceous systems [adj]