After Parker, 1982 and Martin & Davis, 2001
<==o Syncarida Packard, 1885
|--o Bathynellacea Chappuis, 1915
| |--o Bathynellidae Chappuis, 1915
| | |-- Bathynella Vejdovsky, 1882
| | `-- Pacificabathynella Schminke & Noodt, 1988
| `--o Parabathynellidae Noodt, 1965 [incl. Leptobathynellidae]
| |-- Califobathynella Cho, 1997
| |-- Hexabathynella Schminke, 1972
| |-- Iberobathynella Schminke, 1973
| `-- Texanobathynella Delamare Deboutteville, Coineau & Serban, 1975
`--+?-o †Palaeocaridacea Brooks, 1962
| |-- †Palaeocaris secretanae
| `-- †Uronectes Bronn, 1850
`--o Anaspidacea Calman, 1904
|--o Anaspididae Thomson, 1893
| |--o Allanaspides Swain, Wilson, Hickman & Ong, 1970
| | |-- A. hickmani Swain, Wilson & Ong, 1970 (Hickman's pygmy mountain shrimp)
| | `-- A. helonomus Swain, Wilson, Hickman & Ong, 1970
| |--o Anaspides Thomson, 1894
| | |-- A. tasmaniae Thomson, 1892
| | `-- A. spinulae Williams, 1965
| `-- Paranaspides lacustris Smith, 1909
|--o Koonungidae Sayce, 1908
| |-- Koonunga Sayce, 1907
| `-- Micraspides Nicholls, 1931
|--o Psammaspididae Schminke, 1974
| |-- Eucrenonaspides oinotheke Knott & Lake, 1980
| `-- Psammaspides Schminke, 1974
`--o Stygocarididae Noodt, 1963
|-- Oncostygocaris Schminke, 1980
|-- Parastygocaris Noodt, 1963
|-- Stygocarella Schminke, 1980
`-- Stygocaris Noodt, 1963
Reference(s):
- Martin, J. W. & Davis, G. E., 2001: An Updated Classification of the Recent Crustacea.
–Natural History Museum of Los Angeles County, Science Series: Vol. #39, pp. vii-124
- Parker, S. P. (ed.), 1982: Synopsis and classification of living organisms. Vols. 1 & 2
–McGrew-Hill Book Company,