archiannelida

• Taxón o clase de anélidos de organización simple, considerado a menudo primitivo o ancestral dentro del filo Annelida.

A taxonomic class of annelid worms, typically characterized by a simple body structure and often considered primitive or ancestral within the phylum Annelida.

nombre propio

1. A class of annelid wormsC2formalscientific

   A class of small, primitive, mostly marine annelid worms, often considered the most ancient group of segmented worms.

   Arquianélidos

   • Archiannelida are typically found in the interstitial spaces of marine sediments.
   • The classification of Archiannelida has been debated among taxonomists.
   • Some species of Archiannelida exhibit a simple body plan with few segments.