Siphlonuridae

ladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Ordo: Ephemeroptera
Subordo: Pisciformia
Superfamilia: Siphlonuroidea

Familia: Siphlonuridae
Subfamiliae: Parameletinae - Siphlonurinae
Overview of genera

Genera (Recent): Edmundsius – Parameletus – Siphlonisca – Siphlonurus

Genera (fossil): †Albisca – †Aphelophlebodes – †Australurus – †Baltameletus – †Balticophlebia – †Bolbonyx – †Costalimella – †Cretoneta – †Cronicus – †Dulcimanna – †Mesobaetis – †Mesonetopsis – †Mogzonurella – †Mogzonurus – †Multiramificans – †Olgisca – †Proameletus – †Promirara – †Sinoephemera – †Siphangarus – †Siphgondwanus – †Siphlurites – †Siphonurus – †Stackelergisca – †Triassonurus
Name
Siphlonuridae

Siphlonuridae, also known as the primitive minnow mayfly is a family of insects belonging to the order Ephemeroptera.
Taxonomy

The family is divided into the following genera:

Genus: Edmundsius
Genus: Parameletus
Genus: Siphlonisca
Genus: Siphlonurus

[2]
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; 3 long slender filaments at the end of the body are about equally long.

[3]
References

Wang, Yan-hui; Engel, Michael S.; Rafael, José A.; Wu, Hao-yang; Rédei, Dávid; Xie, Qiang; Wang, Gang; Liu, Xiao-guang; Bu, Wen-jun (2016). "Fossil record of stem groups employed in evaluating the chronogram of insects (Arthropoda: Hexapoda)". Scientific Reports. 6: 38939. Bibcode:2016NatSR...638939W. doi:10.1038/srep38939. PMC 5154178. PMID 27958352.
"ADW: Siphlonuridae: CLASSIFICATION".
"ADW: Primitive Minnow Mayflies: CLASSIFICATION".