Turtle Lower Classifications

The pleurodiran and cryptodiran turtles differ fundamentally in lower jaw architecture and musculature. 2017 by the Turtle.

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The alligator snapping turtle is a species of turtle in the family Chelydridae.

Turtle lower classifications. There are currently four recognized species of box turtles. It had wide elongated ribs curving along its back an early version of the shells of later turtles and tortoises. In the 1950s priority was given to the Linnaean name Testudines as the formal name for the turtle order.

Eleven turtle families fall into the Cryptodira groups while just three families live in the Pleurodira. Eastern box turtles have interesting feet sporting 5 toes in the front and 4 in the back. Luteola Coahuilan box turtle Terrapene coahuila Yucatán box turtle Terrapene yucatana Mexican box turtle Terrapene mexicana Painted Turtle Chrysemys.

All turtles tortoises and terrapins have the same root classification as shown above. Chrysemys picta belli Western Painted Turtle. The manner in which the neck folds is the most obvious feature separating the two modern turtle suborders.

Klauberi Western box turtle Terrapene ornata Ornate box To. Temminckii is one of the heaviest freshwater turtles in the world. It is often associated with but not closely related to the common snapping turtle which is in the genus Chelydra.

Chelydra serpentina Common Snapping Turtle. Eastern box turtles are the state reptile of both Tennessee and North Carolina. It is the largest freshwater species of turtle in North America.

Sub-orders Cryptodira and Pleurodira. The box turtle can be recognized by its domed shell which is hinged at the bottom making it possible for the turtle to close its shell tightly to keep predators out. Ornata Desert box To.

They are the official turtle of two different states. This difference typically yields a flatter and broader skull in the pleurodiresan architecture that may have allowed the evolution of the gape-and-suck feeding mechanism seen in many pleurodires and best developed in the South American matamata Chelus fimbriatus or C. Lower levels of taxonomy are defined mainly by differences in the skeleton primarily the skull and shell.

Chrysemys picta marginata Midland Painted Turtle Clemmys guttata Spotted Turtle. Nelsoni Northern spotted Tn. Spotted box turtle Terrapene nelsoni Southern spotted Tn.

Above 65 Basking Temp. So heres where they can be grouped together. Common box turtle Coahuilan box turtle Spotted box turtle and Ornate box turtle.

Some unusual individuals may only have 3 toes in the back. The earliest identified Testudine ancestor is a foot-long lizard called Eunotosaurus which lived in the swamps of Africa 260 million years ago. Classification of Turtles Biologically speaking turtles are reptiles belonging to the order Testudines which is further categorized into two groups ie.

They also fall into the same taxonomy classification order which is called Testudines. But once you get beyond this and into the family genus and species level things get. The following classification of living families derives mainly from Turtles of the World 8th ed.

Turtle Classification The classification of turtles can split up into two separate groups Cryptodira and Pleurodira. Turtles have a deep evolutionary history that extends to a few million years before the Mesozoic Era better known as the Age of Dinosaurs. The species is native to freshwater habitats in the United States.

Chrysemys picta picta Eastern Painted Turtle Chrysemys picta dorsalis Southern Painted Turtle. There were even votes to make them the state reptile of both Pennsylvania and Virginia. Not too shabby for a little turtle who.

Respectively speaking those having necks that move vertically and those that move side to side.

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