The genus of geckos is actually one specific subfamily with multiple genus's. For example. Family: Gekkonidae Subfamily: Diplodactylinae Genus: Rhacodactylus. There are multiple genus of gecko all from different subfamily's, ranging from different parts of the world. Researchers will categorize animals by specifics; Location, scale sizes, temperament, nocturnal/ diurnal dwelling, claws/ setae etc..
Reptiles are a class; that's a classificaton bigger than a genus. The hierarchy is Kingdom -- Phylum -- Class -- Order -- Family -- Genus -- species.
For example, the Eastern Diamondback is Class Reptilia (incl. turtles and gators), Order Squamata (the snakes and lizards); Family Crotalidae; Genus Crotalus; species horridus
Salamanders are in the order of Urodela.
Skink is not a single species but a family. Skinks are in the family Scincidae, which has well over a thousand species.
Lizards occupy more than one genus. They make up the suborder Lacertilia which contains may genera.
some are Basiliscus
when classifying with dichotomous key, that belong in different groups. and have different genus's
Dogs belong to the genus Canis, along with wolves, coyotes, and jackals. Their scientific name is Canis lupus familiaris.
they belong to the genus of artemia
They belong to the Dionaea Genus.
A sheep belongs to the genus "Ovis."
They belong to the genus 'Capra'
All dogs belong to the genus Canis.
Marmosets belong to the Cebuella genus.
Snakes are not a single species, nor do they belong to a single genus. Snakes are a suborder of reptiles that contains 3,400 known species in over 500 genera. They belong to the suborder Serpentes in the order Squamata.
reptiles reptiles
They belong to the Genus 'Musca'.
Both the King penguin and the Emperor penguin belong to that genus.