Three head-larvae of Hesslandona angustata (Phosphatocopida, Crustacea) from the Upper Cambrian of western Hunan, South China and the phylogeny of Crustacea

► 'Orsten'-type Hesslandona angustata head-larvae from Upper Cambrian of South China. ► Results from cladistic analysis of the Crustacea sensu lato are presented. ► Phylogenetic and evolutionary history of the Crustacea sensu lato is presented.