Here's why:

* Continental Crust: The Eurasian Plate includes a large portion of the continents of Europe and Asia. This part is made up of thick, less dense continental crust.

* Oceanic Crust: The Eurasian Plate also includes a portion of the ocean floor, particularly the eastern part of the Atlantic Ocean. This part is made up of thinner, denser oceanic crust.

So, while the Eurasian Plate is often referred to as a continental plate, it's more accurate to describe it as a composite plate that includes both continental and oceanic crust.