Limy
61crinoid — crinoidal, adj. /kruy noyd, krin oyd/, n. 1. any echinoderm of the class Crinoidea, having a cup shaped body to which are attached branched, radiating arms, comprising the sea lilies, feather stars, and various fossil forms. adj. 2. belonging or… …
62Cryptozoon — /krip teuh zoh on/, n. an extinct genus of algae from Precambrian and Cambrian times, forming irregularly hemispherical fossil colonies composed of layers of limy precipitate. [1883; < NL; see CRYPTO , ZOON] * * * …
63hyolithid — /huy ol i thid/, n. 1. any invertebrate of the extinct genus Hyolithes, most common in the Cambrian Period, having a limy, univalve shell, and thought to be related to the pteropods. adj. 2. belonging or pertaining to Hyolithes. [ < NL… …
64marsh — marshlike, adj. /mahrsh/, n. a tract of low wet land, often treeless and periodically inundated, generally characterized by a growth of grasses, sedges, cattails, and rushes. [bef. 900; ME mershe, OE mer(i)sc (c. G Marsch). See MERE2, ISH1; cf.… …
65Marsh — /mahrsh/, n. 1. Dame (Edith) Ngaio /nuy oh/, 1899 1982, New Zealand writer of detective novels. 2. Reginald, 1898 1954, U.S. painter and illustrator. * * * I Freshwater or marine wetland ecosystem characterized by poorly drained mineral soils and …
66periostracum — periostracal, adj. /per ee os treuh keuhm/, n., pl. periostraca / keuh/. the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids. [1830 40; < NL, equiv. to peri PERI + ostracum a shell < Gk… …
67sea star — n. starfish. [1560 70] * * * ▪ echinoderm also called starfish any marine invertebrate of the class Asteroidea (phylum Echinodermata) having rays, or arms, surrounding an indistinct central disk. Despite their older common name, they are not… …
68solenogaster — /seuh lee neuh gas teuhr, len euh /, n. Zool. any of a group of wormlike mollusks, class Solenogastres (formerly Aplacophora), inhabiting deep ocean layers and having fine limy spicules on the covering mantle. Also called aplacophoran. [ < NL,… …
69starfish — /stahr fish /, n., pl. (esp. collectively) starfish, (esp. referring to two or more kinds or species) starfishes. any echinoderm of the class Asteroidea, having the body radially arranged, usually in the form of a star, with five or more rays or… …
70Corynocarpus rupestris — subsp. rupestris Conservation status …
