Homology and Evolution of the Chaetae in Echiura (Annelida)
Echiura is traditionally regarded as a small phylum of unsegmented spiralian worms. Molecular analyses, however, provide unquestionable evidence that Echiura are derived annelids that lost segmentation. Like annelids, echiurans possess chaetae, a single ventral pair in all species and one or two add...
| Main Authors: | , , |
|---|---|
| Format: | Online |
| Language: | English |
| Published: |
Public Library of Science
2015
|
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4348511/ |