archiannelida

• Classe taxonômica de anelídeos, geralmente caracterizada por estrutura corporal simples e frequentemente considerada primitiva ou ancestral dentro do 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.

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1. A class of annelid wormsC2formalscientific

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

   Classe de vermes anelídeos

   • 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.