Turtle Anatomy

The shell is composed of hard bone plates covered by scutes. For more anatomy drawings please visit jeff dawsons turtle pages.

Anatomy Of A Turtle Picture Of Georgia Sea Turtle Center

Reptile with an oval shell and a horned beak.

Turtle anatomy. The carapace and plastron are bony structures that usually join one another along each side of the body creating a rigid skeletal box. Of the 356 known specie. The amphibious turtles normally have limbs similar to those of tortoises except the feet are webbed and often have long claws.

It has a very short tail and four short legs and moves very slowly. Turtle shell anatomy scutes turtles are reptiles whose protection comes from a shell. The turtle shell has a top carapace and a bottom plastron.

Drawing courtesy of jeff dawson. This box composed of bone and cartilage is retained throughout the turtles life. The order testudines includes both extant and extinct species.

The scutes are made of keratin the primary substance in hair nails and hooves of other animals. The anatomy of the sea turtle is unique in that it is one of the few creatures to have both an internal and external skeleton. In all species except the leatherback the external skeleton whose main purpose is to provide protection and support for internal organs is comprised of a bony shell which is itself divided into two halves.

Turtle may refer to the order as a whole or to fresh water and sea dwelling testudines. The hawksbill sea turtle eretmochelys imbricata has a particular external anatomy. These turtles swim using all four feet in a way similar to the dog paddle with the feet on the left and right side of the body alternately providing thrust.

Internal anatomy of a turtle. Although only females leave the sea to enter sandy beaches and lay their eggs in exceptional cases some males have been observed very close to the shore in isolated beaches where the water is shallow and the sun covers most of their body. The bony part of the shell is covered with a thin layer of keratin.

The earliest known members of this group date from the middle jurassic making turtles one of the oldest reptile groups and a more ancient group than snakes or crocodilians. Turtles are reptiles of the order testudines characterized by a special bony or cartilaginous shell developed from their ribs and acting as a shield. The lower plastron and the upper carapace.

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