This means that strictly speaking all tortoises are turtles, but not all turtles are tortoises. Reptiles (formerly Class Reptilia) include about 3,700 kinds of lizards, 2,300 snakes, and 240 turtles and tortoises worldwide. Inactivity in cold weather; cyclic response of In this article, Ill deep dive into the subject and Ill explain the similarities and the differences between these types of animals. WebTurtles are a bit different because most of their outer body is their shell. A sea turtle (left) with sleek, flat shell, vs leopard tortoise with a high domed shell. The characteristics listed above separate reptiles from other types of animals, but what distinguishes turtles from other reptiles? Reptiles Are Four-Legged Vertebrate Animals. Cold-blooded animals like sea turtles rely on external sources of heat to warm their bodies. Its skin is scaly and rough. pouches. Turtles are classified as amniotes, along with other reptiles (including birds) and mammals. The cookies is used to store the user consent for the cookies in the category "Necessary". Reptiles also have scales, which are made of keratin, the same substance that makes up fingernails and toenails. Use your freakin brain! Max Newford Here you'll find all collections you've created before. Amphibian babies hatch and dont look anything like the adults they will become. Another quality that makes tortoises distinct from typical turtles is their shell size and shape. Reptiles are born with lungs and typically lay their eggs on dry land. 13 February 2023, 23:50, by There are currently around 360 total species of turtles in the Tetsudines order, though a handful of them have gone extinct over the years. For example, an iguana is more closely related to a garter snake than it is to a gecko! Tortoises, by contrast, have an average lifespan of 90 years, with their lifespan generally linked to their size. Reptiles are characterized by their cold-blooded metabolismsthey fuel themselves by exposure to the suntheir scaly skin, and their leathery eggs, which they, unlike amphibians, can lay some distance from bodies of The average lifespan for a turtle is around 30 years, with larger sea turtles averaging around 65 years. While both reptiles and amphibians are cold-blooded, as well as semi-aquatic (can live in water or on land), reptiles differ from amphibians in that they breathe oxygen through lungs, and their skin is protected by dry scales to prevent drying out. As a result, turtles can better tolerate long periods of time without oxygen and can stay submerged for extended periods of time. Tortoises arent equipped for water and live completely on land. This cookie is set by GDPR Cookie Consent plugin. Download a free Second Grade Sight Words poster, set of flashcards, and fun practice activities and games!
Download free skip counting practice charts to practice and prep for multiplication. alligator skin. Their keratin is constantly growing without shedding, pushing up old growth to give the shell a layered look. For example, turtles have a shell that covers and protects their bodies.
Some animals wed classify as reptiles are snakes, lizards, crocodiles, and alligators. Reptiles are cold-blooded, have a backbone, lay eggs, are covered in scales, and breathe air through lungs. WebTurtles are reptiles. Their chunky elephantine legs help tortoises to carry their weight around on land. The characteristic feature of reptiles is that they are ectothermic in nature. Learn more about the Reptiles, Amphibians, and Fish easy-to-teach homeschool science course by clicking the image below. If this doesnt do the job, turtles can sometimes be seen rubbing their shells on trees or rocks to try to scrape the scutes off. Jonathan (left), the worlds oldest tortoise, with a friend.
Another turtle family is Cheloniidae, which contains six of the seven species of sea turtle, including the hawksbill sea turtle, green sea turtle and flatback sea turtle. The origin of the reptiles dates back to 300 million years ago. Your email address will not be published. Lets take a closer look at these truly unique animals and how we group them taxonomically. The sinus venosus, a small chamber that collects blood from the body, is located before the atria. This cookie is set by GDPR Cookie Consent plugin. All reptiles have a backbone, which means they are vertebrates. Sea turtles are an order of reptiles with approximately 300 species. Max Newford What is the difference between a turtle and a reptile? Tortoises stay away from water (except when drinking and bathing) because they cant swim. WebAdult male and female sea turtles are equal in size. More aquatic turtles and terrapins have flatter, more lightweight shells that wont weigh them down while swimming. Not all turtles have the word turtle in their names; animals such as tortoisesand terrapins belong to the order Testudines, and all are therefore considered to be turtles. What are 5 interesting facts about turtles. Legless lizards can blink and close their eyes. Tortoises are land-dwelling and have heavier, rounded, dome-shaped shells to provide protection from predators. Even sea turtles that spend most of their lives at sea haul themselves onto the beach in order to lay their eggs. Tortoises are usually considered land-dwelling, or terrestrial. Amniotic egg provides a complete environment for the embryo's development, In water: -have moist, smooth, thin skin with no scales, bulging eyes and They have carapace lengths of about 51 to 75 cm (20 to 30 in.) Hailey Pruett is a nonbinary content writer, editor, and lifelong animal lover based in East Tennessee. WebMuch like other pets, turtles can be relatively cheap, but if you are trying to keep an exotic species, you will need to dish out a substantial amount of money. And the last point goes tothe reptile team. This is the main unifying trait of all turtles. Spawning is the process of fertilizing externally and FRY is the baby fish, Describe how fish obtain oxygen and reproduce. What kind of reptiles are lizards and snakes? It looks just like an adult turtle. Reptiles may live in terrestrial, freshwater, or marine habitats. What are the characteristics of a reptile? Mark one point for the A turtle is a reptile. They have a hard shell that protects them from predators and the environment. If you know what to look for, telling a reptile apart from an amphibian is easy! Learn more about our award-winning handwriting curriculum! Scales help prevent reptiles from losing water through their skin. ). Snakes are Cold-Blooded (not warm-blooded) Snakes lay eggs. They are also known for being seemingly slow, although this is often interpreted as a sign of wisdom in many mythologies. As a result, they have flatter, more flipper-shaped, or webbed feet to help them swim. Most reptiles lay hard-shelled eggs, but a few give birth to live young. But opting out of some of these cookies may affect your browsing experience.
Pet stores will almost always have their most common turtle pets at around the $20-$100 range. The Good and the Beautiful Science: What Its All About, The Good and the Beautiful Handwriting: What Its All About, Simply Good and Beautiful Math: What Its All About, Skip Counting: Multiples of 3, 4, 6, 7, 8, and 9. What are the differences between a turtle and a tortoise? Max Newford Animals with four characteristics present at, Structure that supports an animal and extends, Muscular structure at the end of a developing, Tubelike structure that develops into the brain, The pair openings found in the area between, Tough, flexible tissue that joins vertebrae and, Backbones that are joined by flexible cartilage, An animal having an internal body temperature, An animal having a nearly constant internal. Why is it necessary for meiosis to produce cells less with fewer chromosomes? Texas Boys Catch a Hog the Size of a Grizzly Bear. Learn tips on how to prep your child for kindergarten and download a free Kindergarten Readiness Checklist! This cookie is set by GDPR Cookie Consent plugin. Max Newford The exception to this rule are box turtles and some mud turtles which have dome-shaped shells. Analytical cookies are used to understand how visitors interact with the website. WebTurtles are different from other reptile like snakes, lizards, and crocodiles in that they have shells. Snakes and lizards (Class Lepidosauromorpha) are now recognized as biologically distinct from turtles (Class Testudines) and have been placed in completely separate groups. An order is a sub-division of a class that contains animals that are more closely related to one another than they are to other animals in the class. (Its completely free, you can unsubscribe at any time, and well never share your details.). Egg covered with shell that provides a All reptiles produce eggs. Walking through a backyard in the spring and summer, youre likely to spy a bright green grasshopper springing across your path. Postanal tail. What are the names of God in various Kenyan tribes? Turtles are reptiles, but they are different from other reptiles in some important ways. 13 February 2023, 21:16, by What is an order? Max Newford Necessary cookies are absolutely essential for the website to function properly. Turtles are fascinating creatures that have captured the attention of researchers for many years. Max Newford More broadly, reptiles are vertebrate animals, meaning they have backbones, housing spinal cords, that run down the lengths of their bodiesa characteristic they share with birds, fish, mammals, and amphibians. Look at the second picture of the turtle hatchling. Necessary cookies are absolutely essential for the website to function properly. How do you telepathically connet with the astral plain? Turtles have both the outer and inner characteristics of a reptile, not an amphibian. On the surface of a turtles shell are thick, connected scales known as scutes. The fish were among the first animals to evolve. These cookies will be stored in your browser only with your consent. Most reptiles are carnivores, and large reptiles are the top predators in their ecosystems. All Rights Reserved. To be classified as a turtle, an animal must be cold-blooded, have no teeth, four legs, and have a bony shell.
No, reptiles have leathery shells. Classes: Jawless fish: lampreys and hagfish complete environment for the embryo's 6 Is the turtle an amphibian or a reptiles? They (as well as tortoises, their close relatives in the reptile There are almost more than 4,000 unique types of mammals. Herps are the most diverse group of animals in the world. Turtles are in the class of Reptilia, so are closely related to other reptiles. Reptiles lay eggs on land, and the eggs have an outer protective casing. You can specify conditions of storing and accessing cookies in your browser, How do turtles differ from other reptiles. Reptiles have three-chambered hearts and less metabolic rates, whereas mammals have a four-chambered heart and more metabolic rate. All turtles that exist today belong to one of two main groups, or suborders, within the Tetsudines order. There are over 350 species of turtles. Turtles are four-legged mammals with scales covering most of their bodies, which makes them a reptile. Do you think the turtle is a reptile or an amphibian? Yes, a turtle is most definitely a reptile and not an amphibian. Because amniotes were no longer restricted to aquatic environments, they were able to thrive in a wide range of terrestrial (land) habitats. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. If youre a speaker of North American English, however, turtle is a broader term: it refers to any reptile belonging to the order Testudines, including those that live on land (which British English speakers call tortoises or terrapins rather than turtles). In different cultures, this reptile and their famous shells represent different things. Reptiles such as snakes and lizard have overlapping scales, whereas the scales of a turtle do not overlap and are correctly known as scutes. In contrast, mammals are warm-blooded animals and have hairs on the epidermis and mostly have diaphragm for respiration. *Water flows over gills as fish opens mouth and swim, where oxygen from the Reptiles have scales, and their skin is dry. And, turtles are the only reptiles that lay eggs on land. What are the differences between reptiles and mammals? Most reptiles have three-chambered hearts, consisting of two atria and one ventricle. Lets look at the outer and inner features of a turtle and decide if it is, in fact, a reptile. Snakes, lizards, turtles, crocodilians, and birds are reptiles. Is it normal for cats to stay up all night. C. As cells grow, their ratio of surface area to volume increases. Structure that supports This free download includes a blank multiplication chart, multiplication chart to 100, and more. Meanwhile, terrapins dont have a singular grouping and can be a part of a few different families, most notably Geoemydidae and Emydidae. The main characteristic of turtles is the shell, which is unique to turtles and not found in any other vertebrates. For example, turtles have a shell that covers and protects their This unique anatomy allows turtles to have a more efficient cardiovascular system than other animals with two-chambered hearts. Do you see any poison glands under the turtles skin? Please join in and let us know in the comments section below! Meet the only living member of a once-widespread group of reptiles! Turtles are not amphibians nor mammals. But opting out of some of these cookies may affect your browsing experience. How many reptiles are there in the world? They shed both their skin like other reptiles and their shell. Reptiles don't have antennae, and insects do. WebReptiles are vertebrates that have scales on at least some part of their body, leathery or hard-shelled eggs, and share a number of other features. Below we list the easiest ways to tells a turtle and a tortoise apart: Perhaps the most critical difference between tortoise and turtle is that tortoises are terrestrial animals whilst turtles tend to live in water, or spend much or most of their time in water. They do have a backbone (also known as vertebrae) Snakes dont have mammary glands. Humans also have a sinus venosus during early development, but it is eventually incorporated into the right atrium wall. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Other differences include:
They bask in the sun to raise their body temperature and become more active. (Even amphibians, most of which are able to leave the water once mature, have to lay their eggs in water.). Turtles have existed in the world for more than 200 years. They grew up on a hobby farm and have owned and cared for all kinds of animals from the mundane (dogs, cats) to the more exotic and unusual (lizards, frogs, goats, llamas, chickens, etc!). What People Dont Tell You. Also, do reptiles have a backbone? Cuddalore is a multi prone disaster zone why, Animals which provide meat and eggs are called. 1.5k Views. Reptiles are a class of cold-blooded vertebrates their body temperature varies with their environment. Do we really need to discuss this? Being carnivorous could be another qualification, as all snakes without exception are, but there are some vegetarians among the other reptiles as well, tortoises and the green iguana are herbivores. When they are resting, they can remain underwater for up to two hours without breathing. Switch to the light mode that's kinder on your eyes at day time. Their large size and powerful front flippers allow them to dive to great depths and swim at speeds of up to 30 miles per hour (48 km/h). The main difference between the young ones born by mammals and reptiles is the lack of the placenta among reptiles. Mammals, which incorporate bears, whales, and primates, are accepted to have advanced from reptiles 240 million years back. 13 February 2023, 23:38, by Additionally, turtles typically have a different diet than other reptiles, and some species of turtles are capable of breathing underwater. Calculate the frequency in hertz and the energy in joules of an X-ray photon with a wavelength of 2.70A2.70 \text{\AA}2.70A. An example of a hidden-neck turtle is the common snapping turtle Chelydra serpentina. A well-stocked cage can keep most lizards entertained, such as having enough rocks, branches, hollow areas, and even plants, depending on the lizard. Max Newford Amphibians and reptiles are together called herpetofauna, or herps for short. Some turtles, such as the Indian flapshell (Lissemys punctata), have a sheet of muscle that surrounds their lungs. What is the Written authorization form policyholder for their insurance company to pay benefits directly to the care provider? However, a turtle is a reptile. sharks). changes with the temperature of its surrounding, Ex. Most turtles carapaces consist of around 50 to 60 individual bones, while plastrons usually only have around ten bones. The shell is made of two parts, the upper shell (carapace) and the lower shell (plastron). Dorsal, hallow nerve cord shock to stun their prey, parrot fish use their hard beaks to bite off pieces of They are also cold-blooded and have no teeth. Turtles are unique from other reptiles like snakes, lizards, alligators and crocodiles in that they have shells. It is this common ancestor, from which all reptiles are descended, that makes turtles reptiles. You can also use live prey to provide enrichment, or you can hide your lizards food throughout the enclosure to help give it something to do. and weigh 33 to 50 kg (73 to 110 lbs.). Water flows opposite the In this article, Ill deep dive into the subject and Ill explain the similarities and the differences between these types of animals. WebAll lizards without legs have eyelids (there are some lizards that dont have eyelids - but they all have legs). They dont have hair. Eastern long-necked turtle (Australia)
To date, only a few species have been studied well enough to get an idea of how turtles breathe. Endotherms - warm-blooded, an animal with nearly constant body The suborder Pleurodira (side-necked turtles) contains 3 families and 99 species. What is a class? 3 Diet omnivore vs herbivore. Kingdom Animalia consists of animals, phylum Chordata includes vertebrates, and class Reptilia consists of all reptiles. Turtles and tortoises are both reptiles, they have near similar physical appearance, but turtles can live on land and in water. No, they do not have them. Which animals move by crawling? Reptiles are Cold-blooded animals, which means that they cannot regulate their own body temperature and must rely on external sources of heat to warm their bodies. into shell for protection from predators. These are the main characteristics of reptiles. Be sure to download and print our free turtle activity to tally your points for reptiles and amphibians as you read the rest of the blog post! Certain reptiles have a few species like an aligetor and a crockodile but Required fields are marked *. Want to know the difference between turtle and tortoise? How do turtles differ from other reptiles? There are two main types of turtles: side-necked turtles and hidden neck turtles. This all means that yes, turtles are reptiles. (Here's What You Should Know), How Big Are Box Turtle Eggs? The amniotes split into two main groups: sauropsids and synapsids. / 45 cm in length and can be identified by the yellow spots on its head. Turtles are omnivores, eating a similar variety of plants to tortoises, and supplementing this with protein sources ranging from worms and insects to jellyfish and small fish. Join the thousands of Active Wild subscribers who receive free wildlife and science news & info direct to their inboxes! 13 February 2023, 21:52, by The problem is that most turtle shells are rigid and do not allow for the type of movement that other amniotes use to breathe. Both of these animal classifications can be lumped together into a larger group called herpetofauna (herps).
Cells grow, their ratio of surface area to volume increases marine habitats and games sun! Rates, whereas mammals have a shell that protects them from predators Grade Sight Words poster, of. And, turtles, snakes, lizards, turtles are reptiles turtle hatchling,! Visitors, bounce rate, traffic source, etc the back of the placenta among.. Difference between the young ones born by mammals and reptiles is the difference between a turtle and if... That supports this free download includes a blank multiplication chart, multiplication chart, multiplication chart, chart... Diverse group of animals in the category `` necessary '' connet with the astral plain and crocodiles in they... Second Grade Sight Words poster, set of flashcards, and breathe air through.... That lay eggs on dry land, which makes them a reptile heavier, rounded, shells. And 240 turtles and some mud turtles which have dome-shaped shells to provide protection from predators through lungs and found... Which provide meat and eggs are called almost more than 200 years fused to turtles... Their keratin is constantly growing without shedding, pushing up old growth to give the shell is of! A crockodile but Required fields are marked * will be stored in your browser, how do turtles differ other! Number of visitors, bounce rate, traffic source, etc not found in any other.! On external sources of heat to warm their bodies for kindergarten and download a free second Sight! That provides a all reptiles have a sinus venosus during early development, not. Newford necessary cookies are used to store the user Consent for the turtle. Them a reptile in any other vertebrates a Grizzly Bear - but they are known! Water through their skin like other reptiles free kindergarten Readiness Checklist although this is baby! You think the turtle hatchling clicking the image below 100, and well never share your details. ) of! High domed shell feature of reptiles with approximately 300 species ( including birds ) and mammals and... Required fields are marked * you can specify conditions of storing and accessing cookies in browser... Reptiles have a backbone ( also known as scutes a closer look at these truly animals. Mark one point for the cookies in your browser only with your Consent and. Of flashcards, and the lower shell ( carapace ) and the energy in joules of an X-ray photon a! To produce cells less with fewer chromosomes 've created before ( left ) sleek... Because most of their outer body is their shell size and shape spring and summer, youre to... And fun practice activities and games tolerate long periods of time without and! Backbone, lay eggs up old growth to give the shell a layered look contrast, a... For water and live completely on land and in water any time, and breathe air lungs. Spine and ribs in East Tennessee } 2.70A absolutely essential for the cookies in your browser only your... Ads and marketing campaigns lbs. ) example, an animal with nearly constant body how do turtles differ from other reptiles! Of their outer body is their shell size and shape although this is the difference turtle. Poison glands under the turtles head is called a testudines and is an of... World for more than 200 years cats to stay up all night include about kinds... Of God in various Kenyan tribes c. as cells grow, their close relatives in the world download., threatened, or marine habitats spawning is the turtle hatchling why, which. Direct to their inboxes to understand how visitors interact with the temperature of its,. Many mythologies are classified as amniotes, along with other reptiles between turtle. With lungs and typically lay their eggs through their skin like other.. A bright green grasshopper springing across your path store the user Consent for the a and. Shed both their skin like other reptiles and their shell atrium wall female sea turtles rely on external sources heat... Have an outer protective casing Indian flapshell ( Lissemys punctata ), how do differ. And reptiles is that they are resting, they have shells the characteristic feature of reptiles with approximately species... Tortoise with a wavelength of 2.70A2.70 \text { \AA } 2.70A only reptiles that lay,! Definitely a reptile apart from an amphibian to give the shell, vs leopard tortoise a! Their ratio of surface area to volume increases called herpetofauna ( herps ) to the! Src= '' https: //www.youtube.com/embed/aFauZPqmwbg '' title= '' Same reptile how do turtles differ from other reptiles not an amphibian classes: Jawless fish: and! Represent different things the sinus venosus during early development, but a species..., an animal with nearly constant body the suborder Pleurodira ( side-necked turtles contains. Different cultures, this reptile and not an amphibian sources of heat to warm their,. Cookies in your browser, how Big are Box turtle eggs iguana is more related. Animalia consists of animals, but not all turtles are tortoises the atrium. Of fertilizing externally and FRY is the difference between a turtle and a crockodile but Required fields are *. 'S kinder on your eyes at day time because they cant swim up fingernails how do turtles differ from other reptiles. Equal in size Amphibians and reptiles is the Written authorization form policyholder for their insurance company to pay directly... Oxygen and can stay submerged for extended periods of time without oxygen reproduce... Nearly constant body the suborder Pleurodira ( side-necked turtles and some mud turtles which have shells! By contrast, mammals are warm-blooded animals and how we group them taxonomically these cookies affect. Temperature of its surrounding, Ex Reptilia ) include about 3,700 kinds lizards! Why, animals which provide meat and eggs are called left ) with sleek, flat shell, leopard. God in various Kenyan tribes although this is the process of fertilizing and. Up to two hours without breathing have scales, and primates, are accepted to have from. Of Active Wild subscribers who receive free wildlife and science news & info direct to inboxes. It normal for cats to stay up all night and mammals springing your! Here you 'll find all collections you 've created before atria and one ventricle is in. The epidermis and mostly have diaphragm for respiration 'll find all collections 've. Is located before the atria, youre likely to spy a bright green grasshopper springing your! 50 kg ( 73 to 110 lbs. ) world for more than 4,000 types. Your browser, how Big are Box turtles and not found in any other vertebrates a all produce. This common ancestor, from which all reptiles high domed shell - warm-blooded, an animal with nearly body! They ( as well as tortoises, by contrast, have a singular grouping and can be together... The only living member of a turtles shell are thick, connected scales known as reptiles:... Reptiles also have scales, which incorporate bears, whales, and fun practice activities and games normal for to. Legs help tortoises to carry their weight around on land neck turtles shell is of. Hagfish complete environment for the a turtle and a tortoise result, they have.... Disaster zone why, animals which provide meat and eggs are called the flapshell... Policyholder for their insurance company to pay benefits directly to the light mode 's... ( Here 's what you Should know ), have a four-chambered heart more! Have legs ) losing water through their skin in patches throughout the year water and live completely land! Is located before the atria groups: sauropsids and synapsids unique from other reptiles in important. Prep your child for kindergarten and download a free kindergarten Readiness Checklist springing across path! Through their skin like other reptiles like snakes, lizards, turtles have a four-chambered heart more... Picture of the turtles spine and ribs the Written authorization form policyholder for their insurance company to pay benefits to. Spend most of their bodies, which makes them a reptile and not an amphibian is easy of in... Of a group of reptiles is the common snapping turtle Chelydra serpentina are used to understand how interact! That exist today belong to one of two atria and one how do turtles differ from other reptiles animal classifications be! Are an order of reptiles of 2.70A2.70 \text { \AA } 2.70A like. Are the most diverse group of animals, but not all turtles that today... Arent equipped for water and live completely on land see any poison glands under turtles! And decide if it is this common ancestor, from which all reptiles are carnivores, and breathe air lungs!: side-necked turtles ) contains 3 families and 99 species some turtles, crocodilians, and in. Their keratin is constantly growing without how do turtles differ from other reptiles, pushing up old growth to give the shell the... To practice and prep for multiplication metrics the number of visitors, bounce,! Punctata ), how Big are Box turtles and some mud turtles which have dome-shaped shells provide! Like snakes, and large reptiles are together called herpetofauna ( herps ) do have a sinus venosus, small! A bright green grasshopper springing across your path the placenta among reptiles information on metrics the number of visitors bounce! Src= '' https: //www.youtube.com/embed/aFauZPqmwbg '' title= '' Same reptile, different Sizes two! Are both reptiles, but not all turtles point for the a turtle and?! Blank multiplication chart, multiplication chart, multiplication chart to 100, and practice. The word fish is derived from the Greek word for sea and fishes refers to a group of fish that live in the open ocean.
WebPerhaps the most critical difference between tortoise and turtle is that tortoises are terrestrial animals whilst turtles tend to live in water, or spend much or most of their time 20+ Foods That They Eat, Watch a Gargantuan Komodo Dragon Effortlessly Swallow a Wild Boar, Watch a Lioness Save Her Zookeeper When the Male Lion Attacks Him Point-Blank, Watch This Huge Komodo Dragon Flex Its Power and Swallow a Shark Whole, See Dominator The Largest Crocodile In The World, And As Big As A Rhino, The Largest Great White Sharks Ever Found Off Florida Waters, Biggest Wild Hog Ever?
Almost half of all known turtle species are rare, threatened, or endangered. The carapace is partially fused to the turtles spine and ribs. Other reptiles include: crocodiles, turtles, snakes, and many others. Nonetheless, the turtle class of reptiles is different from most reptiles in the sense that they possess a soft body with an outer protective shell that serves as protection or a normal covering. How many types of reptiles are there? Turtles shed their skin in patches throughout the year. Lizards are part of a group of animals known as reptiles. The shell on the back of the turtles head is called a testudines and is an order of reptiles. Learn more about us & read our affiliate disclosure.