Ontology highlight
ABSTRACT:
SUBMITTER: Parry L
PROVIDER: S-EPMC6739095 | biostudies-literature | 2019 Sep
REPOSITORIES: biostudies-literature
Parry Luke L Caron Jean-Bernard JB
Science advances 20190911 9
Annelid worms are a disparate, primitively segmented clade of bilaterians that first appear during the early Cambrian Period. Reconstructing their early evolution is complicated by the extreme morphological diversity in early diverging lineages, rapid diversification, and sparse fossil record. <i>Canadia spinosa</i>, a Burgess Shale fossil polychaete, is redescribed as having palps with feeding grooves, a dorsal median antenna and biramous parapodia associated with the head and flanking a ventra ...[more]