†superorder Polybranchiaspidida Zhu and Gai 2007 (vertebrate)
Galeaspidomorphi - Polybranchiaspidida
Full reference: M. Zhu and Z.-K. Gai. 2007. Phylogenetic relationships of Galeaspids (Agnatha). Frontiers of Biology in China 2(2):151-169
Parent taxon: Galeaspidomorphi according to R. van der Laan 2019
See also Gai et al. 2015 and Zhu and Gai 2007
Sister taxa: Eugaleaspidiformes, Hanyangaspidiformes, Hyperaspididae
Subtaxa: Geraspididae Huananaspidiformes Pituriaspidiformes Polybranchiaspidiformes Zhaotongaspidiformes
Ecology: planktonic suspension feeder