A group of researchers at the University of Adelaide and the South Australian Museum in Australia published in the journal “BMC Evolutionary Biology” an article that explains why vetulicolians, which are those belonging to the phylum Vetulicolia, could be the strangest relatives of humans.

These creatures had lived in the Cambrian, 500 million years ago, and their fossils were discovered for the first time more than a century ago, in 1911, but their taxonomic status remained uncertain. After this new research, things could change.