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Related Terms:
cretaceous
triassic
belemnite
eon
symmetrodont
geologic
reptile
life
maastrichtian
era
neozoic
period
phanerozoic
dominate
jurassic
earth
astrophyton
pantothere
encrinus
age
Definitions:
Noun
Adjective
Mesozoic
Definition: of or relating to or denoting the Mesozoic era
Definition: Of a geologic era within the Phanerozoic eon that comprises the Triassic, Jurassic and Cretaceous periods from about 230 to 65 million years ago, when life on earth was dominated by reptiles.