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Checklist for Family Graviidae Polenova, 1962
and region Ludlow (Silurian)


Class
 		Ostracoda
Latreille, 1802
Mussel shrimps, Ostracods, Seed Shrimps		20
65
141		Families
Genera
Species		 
Taxom
 

Order
 		Beyrichicopida
Pokorny, 1954
8
38
104		Families
Genera
Species		 
Taxom
 

Suborder
 		Binodicopa
Schallreuter, 1972
2
4
6		Families
Genera
Species		 
Taxom
 

Superfamily
 		Aechminacea
Bou?ek, 1936
2
4
6		Families
Genera
Species		 
Taxom
 
FamilyGraviidae
Polenova, 1962
2
2		Genera
Species		 
Taxom
 


Genera for Ludlow
2 Genera with 2 Species
Ligerina Pranskevichius, 19721SpeciesTaxom
Ortygia Pranskevichius, 19721SpeciesTaxom


Species list for Ludlow
2 Species
Ligerina tauragensis Pranskevichius, 1972
Ortygia clivosa Pranskevichius, 1972


Links, sources and further information
Graviidae at gbif.org
Graviidae at irmng.org