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Checklist for Family Circulinidae Neckaja, 1966
and region Middle Ordovician (Ordovician)


Class
 
Ostracoda
Latreille, 1802
Mussel shrimps, Ostracods, Seed Shrimps
27
105
71
Families
Genera
Species
 
Taxom
 

Order
 
Beyrichicopida
Pokorny, 1954
14
44
39
Families
Genera
Species
 
Taxom
 

Suborder
 
Binodicopa
Schallreuter, 1972
3
3
2
Families
Genera
Species
 
Taxom
 

Superfamily
 
Aechminacea
Bou?ek, 1936
3
3
2
Families
Genera
Species
 
Taxom
 
FamilyCirculinidae
Neckaja, 1966
1
1
Genus
Species
 
Taxom
 


Genera for Middle Ordovician
1 Genera with 1 Species
Parapyxion Jaanusson, 19481SpeciesTaxom


Species list for Middle Ordovician
1 Species
Parapyxion subovatum Thorslund, 1948


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