Heteromorphus is an extinct genus of banffiid from the lower Cambrian Chengjiang lagerstatte. It contains one broadly accepted species, Heteromorphus confusus, as well as a proposed junior synonym, He

Vetulicolida is a class of vetulicolians. It consists of the order Vetulicolata and the genus Nesonektris, which is of uncertain placement. It is distinguished from the Banffozoa by the number and siz