The MISC@1 lack proper vertebrae , which are characteristic for vertebrates according to the new interpretation , whereas traditionally , and confusingly , they were not -LRB- PERSON@1 et al. , NUMBER@1 -RRB- .

These two taxa lack proper vertebrae , which are characteristic for vertebrates according to the new interpretation , whereas traditionally -- and confusingly -- they were not -LRB- PERSON@1 et al. , NUMBER@1 -RRB- .
