amphineura

• Класс моллюсков в составе брюхоногих, характеризующийся простым строением тела и обычно отсутствием раковины.

A class of mollusks within the Gastropoda, characterized by a simple body plan and typically lacking a shell.

uncountable · proper noun

1. Class of mollusksC2formalscientific

   A class of small, worm-like marine mollusks, now more commonly referred to as Aplacophora and Polyplacophora (chitons), characterized by a lack of a distinct head and often having a shell composed of multiple plates.

   Класс моллюсков

   • Amphineura were once considered a single class but are now divided into Aplacophora and Polyplacophora.
   • The study of Amphineura provides insight into the early evolution of mollusks.
   • Fossil records of Amphineura date back to the Cambrian period.