|Turtles are reptiles of the order Testudines, also known as Chelonia. They are characterized by a bony or cartilaginous shell, developed from their ribs, that acts as a shield. Testudines include both extant (living) and extinct species. Its earliest known members date from the Middle Jurassic, around 170 million years ago. Among the turtles are included tortoises and terrapins.
For more information, visit the Wikipedia entry
Get back to Sauropsida
|† Adocus||Big-headed turtle||Eurasian pond turtles|
|Marsh turtles||† Horned turtles||Mud and Musk turtles|
|† Odontochelys||† Proganochelys||Sea turtles|
|Side-necked turtles||† Sinemys||Snapping turtles|