- Vologdinaspis.
Oryctocephalidae Arthricocephalus, Balangia, Barklyella,
Cheiruroides, Curvoryctocephalus, Duodingia, Duyunaspis, Eoryctocephalus, Euarthricocephalus...
- Tomashpol'skaya, 1964 †
Arthricocephalus Bergeron, 1899 †
Changaspis Lee, 1963 †
Cheiruroides Kobayashi, 1935 †
Curvoryctocephalus Zhao & Yuan, 2001 †
Duyunaspis Chien...
- Vologdinaspis.
Oryctocephalidae Arthricocephalus, Balangia, Barklyella,
Cheiruroides, Curvoryctocephalus, Duodingia, Duyunaspis, Eoryctocephalus, Euarthricocephalus...
-
Cheilocephalus (=Pseudolisania; =Zhalangtania)
Cheiropyge (=Suturikephalion)
Cheiruroides (=Inikanella)
Cheirurus Chekiangaspis Chelediscus Chelidonocephalus Chencunia...
-
Tannudiscus tannuolaicus,
Menneraspis striata,
Beldirella pulchra and
Cheiruroides maslovi.
Mallagnostus is
isopygous and, like all Weymouthiidae, lacks...
