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The turtle shell is a shield for the ventral and dorsal parts of turtles (the order Testudines), completely enclosing all the vital organs of the turtle and in some cases even the head. [1] It is constructed of modified bony elements such as the ribs, parts of the pelvis and other bones found in most reptiles.
A carapace is a dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tortoises, the underside is called the plastron.
Turtle shells are made mostly of bone; the upper part is the domed carapace, while the underside is the flatter plastron or belly-plate. Its outer surface is covered in scales made of keratin , the material of hair, horns, and claws.
The bottom shell is plain yellow or lightly spotted. Sometimes as few as one dark grey spot near the lower center of the shell. [24] The midland painted turtle (C. p. marginata) is 10–25 cm (4–10 in) long. [25] The centrally located midland is the hardest to distinguish from the other three subspecies. [23]
The turtle’s shell is made of bone – or more accurately bones. At least 50 bones make up the shell, which consists of the domed carapace at the top, and a flatter plastron covering the belly ...
In contrast to their earth-bound relatives, tortoises, sea turtles do not have the ability to retract their heads into their shells. Their plastron, which is the bony plate making up the underside of a turtle or tortoise's shell, is comparably more reduced from other turtle species and is connected to the top part of the shell by ligaments without a hinge separating the pectoral and abdominal ...
Underside of B. gaffneyi shell Turtle shells are a key feature in the identification and differentiation of turtles. The surface texture of a Basilemys carapace consists of many small, shallow pits that are arranged in a chain-link pattern. [ 4 ]
The succulent is made up of vines covered in green leaves with white veins, and they look exactly like turtle shells. Though small, its vines grow quickly in a sort of cascading effect, making ...