Testudinata

Definitions

  • WordNet 3.6
    • n Testudinata tortoises and turtles
    • ***
Webster's Revised Unabridged Dictionary
    • n. pl Testudinata (Zoöl) An order of reptiles which includes the turtles and tortoises. The body is covered by a shell consisting of an upper or dorsal shell, called the carapace, and a lower or ventral shell, called the plastron, each of which consists of several plates.
    • ***
Century Dictionary and Cyclopedia
    • testudinata An order of Reptilia, having toothless jaws fashioned like the beak of a bird, two pairs of limbs fitted for walking or swimming, and the body incased in a bony box or leathery shell, consisting of a carapace and a plastron, to the formation of which the ribs and dorsal vertebræ are specially modified; the turtles and tortoises. The carapace is usually covered with hard horny epidermal plates called tortoise-shell. There is no true sternum, its place being taken by a number of bones, typically nine, which compose the plastron, or under shell. The dorsal vertebras are immovably fixed. All the cranial bones are united by sutures, excepting the articulation of the lower jaw. The pelvis consists as usual of ilium, ischium, and pubis, but it has a peculiar shape, and is generally discrete from the sacrum. The penis is single and intracloacal, and the anus is a longitudinal cleft. Also called Chelonia. See also cuts under Aspidonectes, carapace, Chelonia, Chelonidæ, leatherback, plastron, Pleurospondylia, Pyxis, slider, terrapin, and Testudo, 4.
    • testudinata In a restricted sense, one of three suborders of Chelonia, contrasted with Athecæ and Trionychoidea, and containing the whole of the order excepting the Sphargididæ and the Trionychidæ.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
Nl. See Testudo