Reptiles arose about 320 million years ago during the Carboniferous period. Reptiles, in the traditional sense of the term, are defined as animals that...

Reptiles, as commonly defined, are a group of tetrapods with an ectothermic ('cold-blooded') metabolism and amniotic development. Living reptiles comprise...

List of reptiles List of largest reptiles List of largest extant lizards Lists of reptiles by region List of U.S. state reptiles Marine reptile List of marine...

study of these traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. The following list of reptiles lists...

male reptiles. In all reptiles and mammals the sperm storage region of the epididymis can objectively be identified as that distal extremity of the epididymis...

the early evolution of reptiles classified the Ichthyosauromorpha as basal archosauromorphs, forming a clade with the other marine reptile groups Thalattosauria...

relatives are squamates (lizards and snakes). Tuatara are of interest for studying the evolution of reptiles. Tuatara are greenish brown and grey, and measure...

between the base of the clavicles, although this is not found in living amphibians. The cleithrum disappeared early in the evolution of reptiles, and is not...

problems in the ecology, evolution, physiology, behavior, taxonomy, or molecular biology of amphibians and reptiles. Amphibians or reptiles can be used as model...

is the largest order of reptiles, comprising lizards and snakes. With over 12,162 species, it is also the second-largest order of extant (living) vertebrates...

vertebrates Sauropsids (reptiles and birds, as well as the extinct parareptiles, dinosaurs, pterosaurs and Mesozoic marine reptiles) Synapsids (mammals as...

examining the evolution of reproductive mode in squamate reptiles". Journal of Experimental Zoology Part B: Molecular and Developmental Evolution. 324 (6):...

mammals are known to prey on reptiles, the major predator is other reptiles. Some reptiles eat reptile eggs, for example the diet of the Nile monitor includes...

Snakes are elongated, limbless reptiles of the suborder Serpentes (/sɜːrˈpɛntiːz/). Like all other squamates, snakes are ectothermic, amniote vertebrates...

Evolution is the change in the heritable characteristics of biological populations over successive generations. It occurs when evolutionary processes...

ancestor and radiation of species Evolution of reptiles – Origin and diversification of reptiles through geologic time Evolution of brachiopods – The origin...

allowing for a movable neck. The cleithrum disappeared early in the evolution of reptiles, and in amniotes is very small or absent. It has been argued based...

This list of fossil reptiles described in 2024 is a list of new taxa of fossil reptiles that were described during the year 2024, as well as other significant...

Allin EF, Hopson JA (1992). "Chapter 28: Evolution of the Auditory System in Synapsida ("Mammal-Like Reptiles" and Primitive Mammals) as Seen in the Fossil...

contribution to the jaw joint. Early in their evolution, diapsid reptiles evolved a lower temporal bar which was composed of the quadratojugal and jugal. The lower...

Lizard is the common name used for all squamate reptiles other than snakes (and to a lesser extent amphisbaenians), encompassing over 7,000 species, ranging...

timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species, Homo sapiens, throughout the history of life...

shows the progression of evolution in fossil fish, and amphibians and reptiles through comparative anatomy, including a list of all the (then) known fossil...

The reptiles of Great Britain include three native snakes and three native lizards. A number of sea turtles visit Great Britain's shores. There are also...

mammal-like reptiles or pelycosaurs, but both are now seen as outdated and disfavored paraphyletic terms, since they were not reptiles, nor part of reptile lineage...

The evolution of cetaceans is thought to have begun in the Indian subcontinent from even-toed ungulates (Artiodactyla) 50 million years ago (mya) and to...

The positions of such groups are described by terms including "theistic evolution", "theistic evolutionism" or "evolutionary creation". Of all the religious...

Marine reptiles are reptiles which have become secondarily adapted for an aquatic or semiaquatic life in a marine environment. Only about 100 of the 12...

bacterial pathogens. Some reptile venom is also composed of different types of β-defensins, another trait shared with reptiles. It is thought to be an ancient...

extinct stem-group relatives of modern reptiles and birds (which, as theropod dinosaurs, are nested within reptiles as more closely related to crocodilians...