Turtle - Wikipedia Turtles (order Testudines) are reptiles characterized by a special shell developed mainly from their ribs Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked turtles), which differ in the way the head retracts
Turtle | Species, Classification, Facts | Britannica turtle, (order Testudines), any reptile with a body encased in a bony shell, including tortoises Although numerous animals, from invertebrates to mammals, have evolved shells, none has an architecture like that of turtles
Testudines: Definition, Characteristics, Types, Behaviour Facts Testudines (turtles and tortoises) are cold-blooded vertebrates in the class Reptilia Their most distinctive feature is their shell, which consists of a domed carapace (upper shell) and a flattened plastron (lower shell), fused by bridges on each side
Testudines (Turtles and Tortoises) - Encyclopedia. com These reptiles are easily recognized by the presence of a dorsal bony carapace and a ventral bony plastron, with the limb girdles located inside the ribs All living forms lack teeth, have internal fertilization, and lay shelled amniotic eggs
What Are Testudines? Everything You Wanted To Know In the world of scientific naming and categorization (otherwise known as taxonomy), a Testudine is the order of reptiles that have a shell developed from their ribs Essentially, if it’s a reptile and its shell has evolved to form from its ribs, it is probably a Testudine
Introduction to Testudines As you will learn if you delve further into the history of this group, the proper name for the extant (living) turtles is Chelonia; Testudines refers to the Chelonia and some of their extinct relatives known from the extentive fossil record of turtles
Testudines - Animal Corner Testudines is an order of reptiles that includes turtles, terrapins, and tortoises All members of this order are characterized by a shell that protects their bodies The shell is made up of two parts: the carapace (upper shell) and the plastron (lower shell)
Testudines - Animalia Turtles are an order of reptiles known as Testudines, characterized by a shell developed mainly from their ribs Modern turtles are divided into two major groups, the side-necked turtles and hidden neck turtles which differ in the way the head retracts
Testudines | INFORMATION | Animal Diversity Web All turtles are placed within the order Testudines (or Chelonia) Reptiles are traditionally classified according to the pattern of fenestration in the temporal region of the skull, and turtles are placed in the subclass Anapsida because they lack fenestration
Testudines – Turtles tortoises: facts, distribution population | BioDB The defining characteristic of Testudines is their unique carapace, or shell, which serves as both protection and structural support This shell is formed by the fusion of some of the vertebrae and ribs, providing a sturdy shield against predators and environmental hazards