Scientists Discover That Turtles Began Living in Shells Much Earlier Than Once Thought

Unique among Earth’s creatures, turtles are the only animals to form a shell on the outside of their bodies through a fusion of modified ribs, vertebrae and shoulder girdle bones. The turtle shell is a unique modification, and how and when it originated has fascinated and confounded biologists for more than two centuries.

Island Turtles of the Galápagos - the Species that Inspired Evolution

Orion Magazine - Deep Intellect

How The Turtle Got Its Shell : The Two-Way : NPR

600 Million Years: Victoria Evolves - Melbourne Museum

OFFICIAL Denver Museum of Nature & Science : Early Origins of Turtles

Levittown man illegally took turtles from N.J. marshes, sold them

Ancient Time Capsule: Scientists Discover DNA in 6-Million-Year

Newdesk Search, Page 312

Ammonites - British Geological Survey

OFFICIAL Denver Museum of Nature & Science : Early Origins of Turtles

The Green Sea Turtle: Diet, Habitat, and Conservation Efforts