Ophiuroidea, Ophiurioidea n. pl. (Zool.) A class of star-shaped echinoderms having a disklike body, with slender, articulated arms, which are not grooved beneath and are often very fragile; called also Ophiuroida and Ophiuridea.
... Jurassic; of the Cretaceous; of the Eocene. Brachymetopus. Brachyurous Crustaceans. Bradford Clay. Breaks in the Geological and Palaeontological record. Breccia. Brick-earths. Bridlington Crag. Brittle-stars (see Ophiuroidea). Bronteus. Brontotheridoe. Brontotherium ingens. Brontozoum. Buccinum. Bucklandia. ... — The Ancient Life History of the Earth • Henry Alleyne Nicholson