Archelon

The Archelon is a two-part fossil that was introduced in.

Completing the Archelon in New Leaf
In, a plaque by the display offers information about the fossil instead of Blathers.

Further Information
Archelon was a very large, slow-moving turtle species from the late Cretaceous period. Its large flippers suggest it lived in the open oceans. They would come to beaches at night to lay their eggs, much like modern turtles. The closest living relative to this dinosaur is the leatherback sea turtle, which is the largest turtle species alive today.