Corallian is a synonym of oxfordian.
In geology|lang=en terms the difference between corallian and oxfordian
is that
corallian is (geology) a deposit of coralliferous limestone forming a portion of the middle division of the oolite while
oxfordian is (geology) the age from 1635±10 ma to 1573±10 ma or the stage of rocks (chiefly coral-derived limestones) deposited during it.
As nouns the difference between corallian and oxfordian
is that
corallian is (geology) a deposit of coralliferous limestone forming a portion of the middle division of the oolite while
oxfordian is a native or resident of oxford.
As a proper noun oxfordian is
(geology) the age from 1635±10 ma to 1573±10 ma or the stage of rocks (chiefly coral-derived limestones) deposited during it.
As an adjective oxfordian is
of or pertaining to oxford or its residents.