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  2. Turtle shell - Wikipedia

    en.wikipedia.org/wiki/Turtle_shell

    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.

  3. Turtle - Wikipedia

    en.wikipedia.org/wiki/Turtle

    Diagram of the origins of the turtle body plan through the Triassic: isolated bony plates evolved to form a complete shell, in a sequence involving Pappochelys, Eorhynchochelys, Odontochelys, and Proganochelys. [19] Zoologists have sought to explain the evolutionary origin of the turtles, and in particular of their unique shells.

  4. Carapace - Wikipedia

    en.wikipedia.org/wiki/Carapace

    Diagram of a prawn, with the carapace highlighted in red. 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.

  5. Tortoise - Wikipedia

    en.wikipedia.org/wiki/Tortoise

    General American usage agrees; turtle is often a general term; tortoise is used only in reference to terrestrial turtles or, more narrowly, only those members of Testudinidae, the family of modern land tortoises; and terrapin may refer to turtles that are small and live in fresh and brackish water, in particular the diamondback terrapin ...

  6. Northern map turtle - Wikipedia

    en.wikipedia.org/wiki/Northern_map_turtle

    Northern map turtle at Shedd Aquarium in Chicago, Illinois. Map turtles are considered habitat specialists and may be replaced by a more tolerant species when their habitat is altered. [11] The effects of human interference by way boating and recreation on shorelines are likely impeding the map turtle from re-establishing itself in natural ...

  7. Flipper (anatomy) - Wikipedia

    en.wikipedia.org/wiki/Flipper_(anatomy)

    This green turtle is about to break the surface for air at Kona, Hawaii. A flipper is a broad, flattened limb adapted for aquatic locomotion. It refers to the fully webbed, swimming appendages of aquatic vertebrates that are not fish. In animals with two flippers, such as whales, the flipper refers solely to the forelimbs.

  8. Reptile - Wikipedia

    en.wikipedia.org/wiki/Reptile

    This is an accepted version of this page This is the latest accepted revision, reviewed on 11 December 2024. Group of animals including lepidosaurs, testudines, and archosaurs This article is about the animal class. For other uses, see Reptile (disambiguation). Reptiles Temporal range: Late Carboniferous–Present Pre๊ž’ ๊ž’ O S D C P T J K Pg N Tuatara Saltwater crocodile Common box turtle ...

  9. Chelydra - Wikipedia

    en.wikipedia.org/wiki/Chelydra

    Chelydra is one of the two extant genera of the snapping turtle family, Chelydridae, the other being Macrochelys, the much larger alligator snapping turtle. [1] The snapping turtles are native to the Americas, with Chelydra having three species, one in North America and two in Central America, one of which is also found in northwestern South America.