Fossil Sea Shell Ancient Rare Dinosaur Ocean SeaShell Aquarium Science Class

Description

They measure about 4" across and my research says they are a few million years old! From the Pliocene era perhaps?
Condition Details: They are interesting around the edges with large unique barnacles attached on the outside.
Both are included in this sale. Great as a starter set for someone interested in fossils. Perfect for Science Class!!
I ship very fast. Thanks for looking at my post.