Species list, Checklist of Infraorder Orthosterni for Quaternary (Cenozoic)

Ants	Arachnids
Bees	Beetles
Booklice	Bugs
Bumblebees	Butterflies
Cicadas	Crane flies
Dragonflies	Earwigs
Flies	Isopods
Locusts	Mantises
Mayflies	Mosquitoes
Myriapods	Net-winged
Plant-parasitic	Scorpion flies
Termites	Wasps

Taxonomy & Distribution
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INSECTOIDGERENGDARK LIGHT

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Checklist for Infraorder Orthosterni Pocock, 1911
and region Quaternary (Cenozoic)

Class	Arachnida Lamarck, 1801 Arachnids	41 67 74	Families Genera Species	Taxom
Subclass	Dromopoda Shultz, 1990	9 10 10	Families Genera Species	Taxom
Order	Scorpiones C. L. Koch, 1837 Scorpion, Scorpions	3 4 5	Families Genera Species	Taxom
Suborder	Neoscorpionina Thorell & Lindström, 1885	3 4 5	Families Genera Species	Taxom
Infraorder	Orthosterni Pocock, 1911	3 4 5	Families Genera Species	Taxom

List of families for Quaternary
3 Families width 5 Species

Chactidae Reginald Inn..., 1893	Fatclaw scorpions	1	Species	Taxom
Buthidae C. L. Koch, 1837	Arrowbreasted scorpions	3	Species	Taxom
Scorpionidae Pierre André..., 1802	Largeclaw scorpions	1	Species	Taxom

Genera for Quaternary
4 Genera with 5 Species

Chactas Gervais, 2005	1	Species	Taxom
Microcharmus Lourenço, 2009	1	Species	Taxom
Palaeogrosphus Lourenço, 2012	2	Species	Taxom
Scorpio Linnaeus, 1829	1	Species	Taxom

Species list for Quaternary
5 Species

Chactas pleistocenicus ♰ W. R. Lourenço, 2005
Microcharmus henderickxi ♰ W. R. Lourenço, 2009
Palaeogrosphus copalensis ♰ W. R. Lourenço, 1996
Palaeogrosphus jacquesi ♰ W. R. Lourenço, 2012
Scorpio schweiggeri ♰ Holl, 1829	Beveled macoma

Subnodes of Orthosterni with occurrences in Quaternary

Superfamily	Buthoidea Koch, 1837	1 2 3	Family Genera Species	Taxom
Superfamily	Chactoidea Pocock, 1893	1 1 1	Family Genus Species	Taxom
Superfamily	Scorpionoidea Leach, 1815	1 1 1	Family Genus Species	Taxom