Checklist for Superfamily Pyrgodesmoidea Silvestri, 1896 and region Contra Costa County (California, USA)
Class | Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 9 11 11 | Families Genera Species | Taxom | Subclass | Chilognatha Latreille, 1802
| 9 11 11 | Families Genera Species | Taxom | Infraclass | Helminthomorpha Pocock, 1887
| 9 11 11 | Families Genera Species | Taxom | Superorder | Merocheta Cook, 1895
| 4 5 5 | Families Genera Species | Taxom | Order | Polydesmida Pocock, 1887 Flat-backed Millipedes | 4 5 5 | Families Genera Species | Taxom | Suborder | Polydesmidea Leach, 1815
| 2 3 3 | Families Genera Species | Taxom | Infraorder | Oniscodesmoides Simonsen, 1990
| 1 2 2 | Family Genera Species | Taxom | Superfamily | Pyrgodesmoidea Silvestri, 1896
| 1 2 2 | Family Genera Species | Taxom |
List of families for Contra Costa County 1 Family width 2 Species
Genera for Contra Costa County 2 Genera with 2 Species
Species list for Contra Costa County 2 Species
Subnodes of Pyrgodesmoidea with occurrences in Contra Costa County
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