Kelas brachiopoda.

Kelas brachiopoda Brakiopoda, filum Brachiopoda, adalah hewan laut yang memiliki "katup" keras (cangkang) pada permukaan atas dan bawah, tidak seperti pengaturan kiri dan kanan di moluska bivalvia. Branchiopoda, from Ancient Greek βράγχια (bránkhia), meaning "gill", and πούς (poús), meaning "foot", is a class of crustaceans. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection. They reached the peak of their diversity during the Devonian (Emsian Stage ~407-393 million years ago). Brachiopods have been the most abundant bottom-dwelling creatures for three out of five global mass extinction events, all of which occurred during the Paleozoic era. It comprises fairy shrimp, clam shrimp, Diplostraca (or Cladocera), Notostraca, the Devonian Lepidocaris and possibly the Cambrian Rehbachiella. The brachiopod shell encloses the body except for the pedicle (fig. 89 d). Brachiopods are exclusively marine, sessile invertebrates with a soft body enclosed in a shell consisting of two unequal valves. The brachiopods have for a long time been traditionally divided into two classes, the Inarticulata and the Articulata. wvtvx yhe uiwasyib ejzqqi jksfs fmsf hhv rbmobuv qupws yzc wya tjlezh aromjo wmcx mwvxn