Definition: Labyrinthibranchii, also known as labyrinthine or labyrinthine echinoderms, are a group of marine animals that include many species of microalgae. These organisms are characterized by their unique spiral-like structures found on their bodies and in their shells. They are often referred to as "labyrinthine" because they have a complex spiral structure that resembles the shape of a labyrinth. Labyrinthibranchii are known for their ability to form intricate patterns and structures, such as zig
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