†class Pteraspidomorpha (jawless fish)
Synonym: Diplorhina
Parent taxon: Pteraspidomorphi according to R. Van Der Laan 2019
See also Long 2011, Nelson et al. 2016 and Ritchie and Gilbert-Tomlinson 1977
Sister taxa: Aserotaspis, Coscinodus, Dipnoides, Furcacudiformes, Gompholepis, Gyropeltus, Neeyambaspis, Palaeosteus, Pituriaspis, Pteraspidida, Pteraspidomorphes, Rabdacanthus, Sigurdia, Tylodus
Subtaxa: Arandaspida Astraspida Heterostraci
Ecology: