In biology, a genus is a taxonomic rank that is used to group together related species. It is the first part of a two-part scientific name, with the second part being the species name. The genus is a higher rank than the species, and it is used to group together species that share similar characteristics. For example, the genus Canis includes all species of dog, such as wolves, coyotes, and domesticated dogs.

The classification of species into genera and other taxonomic ranks is known as taxonomy, and it is used to organize the diversity of life on Earth into a logical and hierarchical system. The classification of species into genera and other taxonomic ranks is based on a combination of physical characteristics, genetic information, and evolutionary history. Scientists use taxonomy to better understand the relationships between different species and to study the evolution of life on Earth.


Elatostema is a genus of flowering plants containing approximately 350 known species in the nettle family Urticaceae, native to tropical forest clearings throughout Australasia, Asia and Africa. There may be as many as 1,000 species of this little-known genus, which is susceptible to deforestation and other forms of human exploitation. Some species, for instance the …

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Selliguea is a fern genus in the family Polypodiaceae. The type species is Selliguea feei.

Xenos vesparum

Xenos vesparum is a parasitic insect species of the order Strepsiptera that are endoparasites of paper wasps in the genus Polistes (most commonly Polistes dominula) that was first described in 1793. Like other members of this family, X. vesparum displays a peculiar lifestyle, and demonstrates extensive sexual dimorphism.


Cranidium is an monotypic genus of stick insects in the monotypic tribe Cranidiini. The single species Cranidium gibbosum has been recorded from northern Brazil, French Guiana and Surinam.


Jiangshanosaurus is a genus of herbivorous titanosauriform sauropod dinosaur that lived in China approximately 92-88 million years ago, during the Turonian-Coniacian stage of the Late Cretaceous.

Proboscis bat

The proboscis bat (Rhynchonycteris naso) is a bat species from South and Central America. Other common names include Long-nosed proboscis bat, sharp-nosed bat, Brazilian long-nosed bat and river bat in English, and murciélago narizón in Spanish. It is monotypic within its genus.

Strymon (butterfly)

Strymon is a genus of scrub hairstreak butterflies in the family Lycaenidae. It is a highly distinct lineage in the tribe Eumaeini, and was at one time even treated as a monotypic tribe Strymonini. The species of the genus are found in the Nearctic, the Palearctic and the Neotropical realms.

Strawberry crinkle cytorhabdovirus

Strawberry crinkle cytorhabdovirus, commonly called Strawberry crinkle virus (SCV), is a negative sense single stranded RNA virus that threatens strawberry production worldwide. This virus reduces plant rigidity, runner production, fruit size, and production, while causing distortion and crinkling of the leaves. This virus was first described in 1932 in Oregon and California with commercial strawberry …

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Kadimakara australiensis

Kadimakara is an extinct genus of early archosauromorph reptile from the Arcadia Formation of Queensland, Australia. It was seemingly a very close relative of Prolacerta, a carnivorous reptile which possessed a moderately long neck.

Humblot’s sunbird

Humblot’s sunbird is a species of bird in the family Nectariniidae. It is endemic to the islands of Grand Comoro and Mohéli in the Comoros. Kingdom: Animalia Phylum: Chordata Class: Aves Order: Passeriformes Family: Nectariniidae Genus: Cinnyris Species:C. humbloti C. humbloti