phylum Schizoramia Bergstrom 1976
superclassis Proschizoramia n.
supercl.
(:12)
classis Yunnanata n. cl.
(:12)
ordo Fuxianhuiida Bousfield 1995 
Fuxianhuia
classis Paracrustacea n. cl.
(:22)
ordo Canadaspidida Novozhilov in
Orlov 1960 Canadaspis
= Hymenostraca Rolfe 1969
= Prophyllocarida Simonetta &
Delle Cave 1975
classis Megacheira n. cl.
(:26)
ordo Leanchoiliida Stormer 1944 Leanchoilia
ordo Yohoiida Simonetta & Delle
Cave 1975 Yohoia
ordo Fortiforcipida n. ord. Fortiforceps
classis Sanctacaridea Bousfield 1995 Sanctacaris
ordo Sanctacarida Bousfield 1995 Sanctacaris
classis * (classes uncertain)
ordo Acanthomeridiida n. ord. Acanthomeridion
ordo Vetulicolida n. ord. Vetulicola
fam. Habeliidae Simonetta &
Delle Cave 1975 Habelia
fam. Molariidae Simonetta &
Delle Cave 1975 Molaria
ordo Tuzoiida Simonetta & Delle
Cave 1975 Tuzoia
ordo Bradoriida Raymond 1936 Bradoria
superclassis Crustaceomorpha Chernysheva 1960
classis Pseudocrustacea Størmer 1944
ordo Agnostida Salter 1864 Agnostus
ordo Waptiida Strømer 1944 Waptia
ordo Phosphatocopida Muller 1964
classis Crustacea Pennant 1777
superclassis Lamellipedia n.
supercl.
(:42)
= subphylum Arachnomorpha Heider 1913, emend. Størmer
1944 [as phylum]
= subphylum Trilobitomorpha Størmer 1944
classis Marellomorpha (Beurlen 1934) Størmer
1944 Marella
classis Artiopoda n. cl.
(:43)
subclassis Nectopleura n. subcl.
(:43)
ordo Nectaspidida
Raymond 1920 (nom. corr. herein, ex Nectaspida)
ordo Acercostraca
Lehmann 1955
ordo Halicyna Gall &
Grauvogel 1967 Halicyne
ordo Retifaciida n. ord.
Retifacies
subclassis Conciliterga n. subcl.
(:60)
ordo Helmetiida
Novozhilov 1969 Helmetia
subclassis Trilobita Walch 1771
subclassis Petalopleura n. subcl.
(:73)
ordo Xandarellida Chen,
Ramskold, Edgecombe & Zhou in Chen et al. 1996 Xandarella
ordo Cheloniellida
Broili 1933 (emend.) Cheloniellon
ordo Sinoburiida n. ord.
Sinoburius
subclassis Xenopoda Raymond 1935
ordo Emeraldellida Størmer
1944 Emeraldella
ordo Limulavida Walcott
1911
subclassis Aglaspidida Bergstrom
1968 Aglaspis
ordo Aglaspidida Walcott
1911 Aglaspis
ordo Strabopida n. ordo Strabops
fam. Strabopidae Gerhardt
1932 Strabops
superclassis Chelicerata