Species list, Checklist of Infraorder Fornicephalae for Riverside County (Eastern California, California, USA)

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Checklist for Infraorder Fornicephalae Raven, 1985
and region Riverside County (Eastern California, California, USA)

Class	Arachnida Lamarck, 1801 Arachnids	69 133 159	Families Genera Species	Taxom
Subclass	Micrura Ehrenberg, 1831	55 108 123	Families Genera Species	Taxom
Infraclass	Megoperculata Börner, 1902	29 68 85	Families Genera Species	Taxom
Order	Araneae Clerck, 1757 Spider, Spiders, True Spiders	28 67 84	Families Genera Species	Taxom
Suborder	Mygalomorphae Pocock, 1892 Mygalomorphs, Primitive spiders	2 2 2	Families Genera Species	Taxom
Infraorder	Fornicephalae Raven, 1985	2 2 2	Families Genera Species	Taxom

List of families for Riverside County
2 Families width 2 Species

Antrodiaetidae Gertsch, 1940	Folding trapdoor spider	2	Species	Taxom
Cyrtaucheniidae Simon, 1892	Cyrtaucheiid spiders	0	Species	Taxom

Genera for Riverside County
2 Genera with 2 Species

Aliatypus Smith, 1974		2	Species	Taxom
Aptostichus Simon, 1891		0	Species	Taxom

Species list for Riverside County
2 Species

Aliatypus plutonis Coyle, 1974
Aliatypus torridus Coyle, 1974

Subnodes of Fornicephalae with occurrences in Riverside County

Superfamily	Atypoidea Thorell, 1870	1 1 2	Family Genus Species	Taxom
Superfamily	Cyrtauchenioidea Simon, 1892 Wafer trapdoor spiders	1 1 0	Family Genus Species	Taxom