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Checklist for Superfamily
Cheiruroidea
and region
Silurian
(Paleozoic)
Class
Trilobita
♰
Walch, 1771
Trilobites
35
317
1119
Families
Genera
Species
Taxom
Order
Phacopida
♰
Salter, 1864
13
130
527
Families
Genera
Species
Taxom
Suborder
Cheirurina
♰
Harrington, 1957
4
57
261
Families
Genera
Species
Taxom
Superfamily
Cheiruroidea
♰
4
57
261
Families
Genera
Species
Taxom
List of families for Silurian
4 Families width 261 Species
Cheiruridae
Salter, 1864
75
Species
Taxom
Encrinuridae
Angelin, 1854
151
Species
Taxom
Hammatocnemidae
28
Species
Taxom
Staurocephalidae
7
Species
Taxom
Subnodes of
Cheiruroidea
with occurrences in
Silurian
Family
Cheiruridae
♰
Salter, 1864
20
75
Genera
Species
Taxom
Family
Encrinuridae
♰
Angelin, 1854
31
151
Genera
Species
Taxom
Family
Hammatocnemidae
♰
5
28
Genera
Species
Taxom
Family
Staurocephalidae
♰
1
7
Genus
Species
Taxom