Relating to or characteristic of the vast continental area of Laurasia believed to have existed in the northern hemisphere and to have resulted from the break-up of Pangaea in Mesozoic times.
an extinct Laurasian group
Definition of Laurasian in US English:
Laurasian
adjectivelôˈrāZH(ə)nlɔˈreɪʒ(ə)n
Relating to or characteristic of the vast continental area of Laurasia believed to have existed in the northern hemisphere and to have resulted from the break-up of Pangaea in Mesozoic times.