Dipleura is a genus of extinct marine arthropods that lived during the Paleozoic era, specifically in the Ordovician period. These creatures are part of the class Trilobita, which is known for its segmented bodies and hard exoskeletons. Dipleura is characterized by its distinct three-lobed body structure, which is typical of trilobites, and it inhabited shallow marine environments. Fossils of Dipleura have been found in various locations, providing valuable insights into the diversity of life during its time. The genus is particularly noted for its well-preserved specimens, which help paleontologists understand the evolutionary history of trilobites and their ecological roles in ancient seas.