Geol. [f. CORAL + RAG in its local sense of hard coarse-textured rock.] The upper member of the Middle Oolite series, a kind of limestone, containing continuous beds of petrified corals.
1816. W. Smith, Strata Ident., 19. The Coral Rag consists chiefly of lumps of coralline Limestone.
1878. Huxley, Physiogr., xvii. 294. The coral-rag itself is altogether similar to modern coral-limestone.
