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The nocturnal geckos evolved from diurnal species, which had lost the rod cells from their eyes. The gecko eye, therefore, modified its cone cells that increased in size into different types, both single and double. Three different photo-pigments have been retained, and are sensitive to ultraviolet, blue, and green.
The family Gekkonidae is a member of the infraorder Gekkota, which seems to have first emerged during the Jurassic period (201–145 million years ago). Eichstaettisaurus schroederi is recognized as one of the earliest examples of an ancestral gecko species.
Gekkoninae is a diverse subfamily of the family Gekkonidae, geckos. It has the most species and genera — over 850 species in 30 genera. ... Tropiocolotes (15 species)
Species of geckos belong to different groups. For example, many species of geckos are in family Gekkonidae, but there are very large species in the family Diplodactylidae. For example, to them belongs the largest gecko species New Caledonian giant gecko (Rhacodactylus leachianus), which can be 36–43.18 cm (14–17 in) long and mass 212–279 ...
Gekko is a genus of Southeast Asian geckos, commonly known as true geckos or calling geckos, in the family Gekkonidae.Although species such as Gekko gecko (tokay gecko) are very widespread and common, some species in the same genus have a very small range and are considered rare or endangered.
Hemidactylus is a genus of the common gecko family, Gekkonidae. [3] [4] It has 195 [5] described species, newfound ones being described every few years.These geckos are found in all the tropical regions of the world, extending into the subtropical parts of Africa and Europe.
Eurydactylodes geckos are oviparous, [3] and only breed once a year. [5] They lay a hard and mostly impermeable shelled egg which is composed of calcium carbonate . [ 12 ] These eggs are among the largest relative to female body size of any gecko. [ 6 ]
The Eublepharidae are a family of geckos consisting of 43 described species in 6 genera. They occur in Asia, Africa, ... thus commonly called eyelid geckos.