1980 in paleontology

Archosauromorphs.
Newly named dinosaurs.
Data courtesy of George Olshevsky's dinosaur genera list.
"Note: the name Lancangosaurus is mistakenly treated as a nomen nudum synonymous with Datousaurus (because Dong et al. 1983 believed it to be conspecific with Datousaurus). However, it is actually an early spelling variant of another nomen nudum, Lancangjiangosaurus."