Making sense of ‘lower’ and ‘upper’ stem‐group Euarthropoda, with comments on the strict use of the name Arthropoda von Siebold, 1848

The ever-increasing number of studies that address the origin and evolution of Euarthropoda - whose extant representatives include chelicerates, myriapods, crustaceans and hexapods - are gradually reaching a consensus with regard to the overall phylogenetic relationships of some of the earliest representatives of this phylum. The stem-lineage of Euarthropoda includes numerous forms that reflect the major morphological transition from a...