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Reptiles, as commonly defined, are a group of tetrapods with an ectothermic ('cold-blooded') metabolism and amniotic development. Living reptiles comprise four orders: Testudines ( turtles ), Crocodilia ( crocodilians ), Squamata ( lizards and snakes ), and Rhynchocephalia (the tuatara ).
- List of Reptiles
Reptiles are tetrapod animals in the class Reptilia,...
- Squamata
Squamata (/ s k w æ ˈ m eɪ t ə /, Latin squamatus, 'scaly,...
- Reptile (Disambiguation)
A reptile is a tetrapod vertebrate of the taxonomic class...
- Eureptilia
Skull of Hylonomus, a eureptile and one of the oldest known...
- Dinosauria
Birds are avian dinosaurs, and in phylogenetic taxonomy are...
- Aves
Birds are a group of warm-blooded vertebrates constituting...
- Diapsid
Characteristics Diagram of the diapsid skull with temporal...
- Lepidosauria
The Lepidosauria (/ ˌ l ɛ p ɪ d oʊ ˈ s ɔː r i ə /, from...
- Reptile (film)
Language. English. Reptile is a 2023 American crime thriller...
- Evolution of reptiles
Though few reptiles today are apex predators, many examples...
- List of Reptiles
- Birds in Relation to Reptiles
- Taxonomy
- Eye Feature
- Size
- Living Reptiles
Some reptiles are more closely related to birds than they are to other reptiles. Crocodiles are more closely related to birds than they are to lizards. Theropod dinosaursare even more closely related, because birds evolved from them. Cladistic writers prefer to put the birds (over 10,000 species) with what people usually call reptiles. (see Saurops...
Reptilia is an evolutionary grade rather than a clade. The main reason is that the term 'reptile' does not include birds, the descendents of theropod dinosaurs. Another reason is that the word 'reptile' is misleading because many extinct types were very different from living reptiles. So instead of Reptilia as a taxonomic class, today many experts ...
A membrane forms an inner eyelid in reptiles and birds. Whitish or translucent, it can be drawn across the eye to protect it from dust and keep it moist. It is called the nictitating membrane.
Reptiles can live in large and small sizes. Their land sizes can be both bigger and smaller than mammals. Titanosaurs were the largest land reptiles, and the smallest land reptile is a chameleon13.5mm long.
Reptiles (living groups only)May 9, 2024 · Learn about reptiles, the class of air-breathing vertebrates with scales, amniotic eggs, and internal fertilization. Explore the diversity, evolution, and ecology of living and extinct reptiles, such as turtles, lizards, snakes, and crocodiles.
Reptiles, as commonly defined, are a group of tetrapods with an ectothermic ('cold-blooded') metabolism and amniotic development. Living reptiles comprise four orders: Testudines ( turtles ), Crocodilia ( crocodilians ), Squamata ( lizards and snakes ), and Rhynchocephalia (the tuatara ).
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