Final answer:
The seaway that separated Laurasia and Gondwanaland doesn't have a specific name as it's part of the continental drift process that occurred when the supercontinent Pangaea split around 200 million years ago.
Step-by-step explanation:
The seaway that separated the supercontinent Pangaea into Laurasia and Gondwanaland is not specifically named in historical geological records because it was part of the process of continental drift. The splitting of Pangaea, which occurred about 200 million years ago, caused the northern and southern parts to separate into the supercontinents known as Laurasia and Gondwana, respectively.
This division led to the isolation and independent evolution of species on the two landmasses, contributing to the unique flora and fauna that we see today on continents that were once part of Laurasia and Gondwana.