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.^[2]

Siphlonuridae Temporal range: Anisian–Holocene, 242–0 Ma[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Ephemeroptera
Suborder:	Schistonota
Superfamily:	Baetoidea
Family:	Siphlonuridae

Taxonomy

The family is divided into the following extant genera:^[3]

1. Ameletoides Tillyard, 1933
2. Edmundsius Day, 1953
3. Parameletus Bengtsson, 1908
4. Siphlonisca Needham, 1909
5. Siphlonurus Eaton, 1868

The following extinct genera are members of the family Siphlonuridae:^[4]

† Albisca Sinitshenkova 1989

† Australurus Jell & Duncan (1986)

† Bolbonyx Sinitshenkova (1990)

† Cheirolgisca Lin & Huang (2008)

† Cretoneta Tshernova 1971

† Dulcimanna Jell & Duncan (1986)

† Huizhougenia Lin (1980)

† Jurassonurus Huang et al. (2008)

† Mesobaetis Brauer et al. (1889)

† Mogzonurella Sinitshenkova (1985)

† Mogzonurus Sinitshenkova (1985)

† Multiramificans Huang et al. (2007)

† Olgisca Demoulin (1970)

† Proameletus Sinitshenkova (1976)

† Promirara Jell & Duncan (1986)

† Siphangarus Sinitshenkova (2000)

† Triassonurus Sinitshenkova & Marchal-Papier (2005)

Family overview

The labrum (upper lip) is not notched in the middle; the antennae are shorter than twice the width of the head; the maxillae on the underside of the head lack prominent rows of golden spines; the abdominal gills are rounded and similar to each other in structure; three long slender filaments at the end of the body are about equally long.^[5]