Species list, Checklist of Superfamily Siphlonuroidea for Green River Formation (West USA, USA)

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Checklist for Superfamily Siphlonuroidea Ulmer, 1920
and region Green River Formation (West USA, USA)

Class	Insecta Linnaeus, 1758 Insects, True insects	202 626 870	Families Genera Species	Taxom
Subclass	Pterygota Lang, 1888 Winged insects	202 626 870	Families Genera Species	Taxom
Infraclass	Palaeoptera Crampton, 1915 Ancient winged insects	22 42 57	Families Genera Species	Taxom
Superorder	Ephemeropteroidea Rohdendorf, 1968	10 15 13	Families Genera Species	Taxom
Order	Ephemeroptera Hyatt & Arms, 1891 Mayflies, Mayflies Anglers Curse, Mayflies Greendrakes	10 15 13	Families Genera Species	Taxom
Suborder	Pisciforma McCafferty, 1991	4 9 8	Families Genera Species	Taxom
Superfamily	Siphlonuroidea Ulmer, 1920	2 5 4	Families Genera Species	Taxom

List of families for Green River Formation
2 Families width 4 Species

Baetidae Leach, 1815	Mayflies	3	Species	Taxom
Ametropodidae (Bengtsson, 1913)	Sand minnow mayflies	1	Species	Taxom

Genera for Green River Formation
5 Genera with 4 Species

Species list for Green River Formation
4 Species

Acentrella turbida McDunnough, 1924	Bluewinged olive dun
Ametropus neavei (McDunnough, 1928)	⇒ Ametropus fragilis Albarda, 1878
Baetis (Baetis) flavistriga McDunnough, 1921	Alpine draba
Labiobaetis propinquus (Walsh, 1863)	⇒ Pseudocloeon propinquum Walsh, 1863

Subnodes of Siphlonuroidea with occurrences in Green River Formation

Family	Ametropodidae ♰ Bengtsson, 1913 Sand minnow mayflies, Sand Minnows	1 1	Genus Species	Taxom
Family	Baetidae Leach, 1815 Mayflies, Olives Baetidae, Small mayflies, Small minnow mayflies	4 3	Genera Species	Taxom