What is the age of the oldest oceanic crust on the North American Plate?

The oldest oceanic crust on the North American Plate is located in the western Atlantic Ocean, specifically in the Newfoundland Basin. It is estimated to be around 200 million years old, dating back to the late Triassic to early Jurassic period. This age reflects the time of its formation during the breakup of the supercontinent Pangaea.