Odontochelys semitestacea is the oldest known extinct species of turtles. It is the only known species in the genus Odontochelys and the family Odontochelyidae. Odontochelys only possessed the bottom portion of a turtle's armor, the plastron.
Shell as reported by Merriam-webster. Recent examples officers have discovered eighteen marcelos with lobsters too small have been punched, reported.
Shell in line with Wikipedia. Number of exoskeleton dorsal section carapace animal, including arthropods, crustacean arachnids, vertebrates, such turtles.
Shell pursuant to Dictionary. Definition of carapace, chitinous shield, carapace covering the dorsal part of the turtle. More.