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Modern turtles have a horny beak without teeth in their mouth. In contrast, Odontochelys fossils were found to have had teeth embedded in their upper and lower jaws. [4] One of the most striking features of turtles, both modern and prehistoric alike, are their dorsal shells, forming an armored carapace over the body of the animal.
Aquatic turtles may refer to: Red-eared slider---- Trachemys scripta elegans. Pond slider---- Trachemys scripta. Northern map turtle---- Graptemys geographica.
Dahl's toad-headed turtle (Mesoclemmys dahli) is a medium-sized species of side-necked turtle in the family Chelidae. This critically endangered freshwater turtle is endemic to northern Colombia , where it lives in small pools, streams, and swamps, but aestivates on land.
Emydura macquarii (common names include Murray River turtle, [7] Macquarie River turtle, [8] eastern short-necked turtle, eastern short-neck turtle and southern river turtle) [9] is a species of turtle in the family Chelidae. It is a wide-ranging species that occurs throughout many of the rivers of the eastern half of Australia.
Glossiphoniidae: Smooth Turtle Leech (Placobdella parisitica) on a snapping turtle shell. (Southern United States) Instead of jaws and teeth, Rhynchobdellidae have protrusible proboscises, which they use to penetrate the host's skin. [2] [10] Mouths of Rhynchobdellidae species are small holes from which the proboscis can be protruded. [10]
The Florida softshell turtle is a large turtle with a flattened, pancake-like body, a long neck, an elongated head with a long snorkel-like nose, and large webbed feet, each with three claws. While most turtles have hard shells composed of scutes , the Florida softshell turtle has a cartilaginous carapace covered in leathery skin.
Aquatic turtles in particular benefit from eating snails, which provide nutritious calcium for their shell growth. The caveat is that they do not carry parasites, which is fairly common.
The spiny softshell turtle (Apalone spinifera) is a species of softshell turtle, one of the largest freshwater turtle species in North America. Both the common name, spiny softshell, and the specific name , spinifera (spine-bearing), refer to the spiny, cone-like projections on the leading edge of the carapace , which are not scutes (scales).