''Jurassonurus'' is an extinct

insect Insects (from Latin ') are Hexapoda, hexapod invertebrates of the class (biology), class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (Insect morphology#Head, head, ...

genus of

mayflies Mayflies (also known as shadflies or fishflies in Canada and the upper Midwestern United States, as Canadian soldiers in the American Great Lakes region, and as up-winged flies in the United Kingdom) are aquatic insects belonging to the order ...

( Ephemeroptera). This genus has only one member and that member has been scientifically named ''Jurassonurus amoenus'' which lived during the

Middle Jurassic The Middle Jurassic is the second Epoch (geology), epoch of the Jurassic Period (geology), Period. It lasted from about 174.1 to 161.5 million years ago. Fossils of land-dwelling animals, such as dinosaurs, from the Middle Jurassic are relativel ...

period 164.7 million to 155.7 million years ago in the Jiulongshan formation, Daohugou Village, Shantou Township, Ningcheng country,

Inner mongolia Inner Mongolia, officially the Inner Mongolia Autonomous Region, is an Autonomous regions of China, autonomous region of China. Its border includes two-thirds of the length of China's China–Mongolia border, border with the country of Mongolia. ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

Taxomany

The genus parent taxon is

Siphlonuridae Siphlonuridae, also known as the primitive minnow mayfly is a family of insects belonging to the order Ephemeroptera. They are adapted to cool waters. Taxonomy The family is divided into the following extant genera: # ''Ameletoides'' Tillyard, 1 ...

which itself is in the clade Tridentiseta which is part of the clade Ephemeroptera (

Mayflies Mayflies (also known as shadflies or fishflies in Canada and the upper Midwestern United States, as Canadian soldiers in the American Great Lakes region, and as up-winged flies in the United Kingdom) are aquatic insects belonging to the order ...

). Jurassonurus has many sister taxonomic clade which are as listed: Bolbonyx, Albisca, Mogzonurus, Triassonurus, Olgisca, Australurus, Cheirolgisca, Cretoneta, Dulcimanna, and many more.

Reference

{{Taxonbar, from=Q123339670 Siphlonuridae Monotypic prehistoric insect genera