Echinoderm - Wikipedia An echinoderm ( ɪ ˈ k aɪ n ə ˌ d ɜːr m, ˈ ɛ k ə- ) [2] is any animal of the phylum Echinodermata ( ɪ ˌ k aɪ n oʊ ˈ d ɜːr m ə t ə ), which includes starfish, brittle stars, sea urchins, sand dollars and sea cucumbers, as well as the sessile sea lilies or "stone lilies" [3]
Echinoderm | Definition, Characteristics, Species, Facts | Britannica Echinoderm, any of a variety of invertebrate marine animals belonging to the phylum Echinodermata, characterized by a hard, spiny covering or skin Living species include sea lilies, sea urchins, sea cucumbers, starfishes, basket stars, and sea daisies
Echinoderm - Definition, Characteristics Examples - Biology Dictionary An echinoderm is a member of the phylum Echinodermata which contains a number of marine organisms recognized by their pentamerous radial symmetry, calcareous endoskeleton, and a water vascular system which helps operate their small podia
Echinoderms - Definition, Characteristics, Types and Examples - AnimalWised Echinoderms are a diverse group of invertebrate marine animals that include starfish, sea urchins, sand dollars, sea cucumbers, and crinoids The phylum contains about 7,000 living species, making it the second-largest grouping of deuterostomes, after the chordates
Sea Stars, Urchins, and Relatives - Smithsonian Ocean Echinoderms live in every ocean, even off the coast of Antarctica Well known as coastal dwellers, they can be found at depths over three miles deep (5,000 meters) Some are stealthy predators, pursuing prey with speed and agility, while others feed on drifting detritus while stuck in place, more similar to a billowing field of ferns
Echinoderms Examples: Types Of Echinoderms From Around The World What Is An Echinoderm? An echinoderm is an animal belonging to the phylum Echinodermata Echinoderms are characterised by their distinctive, five-point radial symmetry, unique water vascular system, tube feet, and the ability to regenerate lost body parts
Echinoderms - MarineBio Conservation Society Echinoderms are a diverse group of marine animals belonging to the phylum Echinodermata They are characterized by a unique radial symmetry and a spiny or prickly outer skin The name “echinoderm” translates to “spiny skin,” which describes their appearance
Echinoderm Facts and Information - ThoughtCo Echinoderms, or members of the phylum Echinodermata, are some of the most easily-recognized marine invertebrates This phylum includes sea stars (starfish), sand dollars, and urchins, and they are identified by their radial body structure, often featuring five arms
Phylum Echinodermata- Characteristics, classification, examples Echinoderms are enterocoelous coelomates with pentamerous radial symmetry, without distinct head or brain having a calcareous endoskeleton of separate plates or pieces and a peculiar water vascular system of coelomic origin with podia or tube-feet projecting out of the body
Phylum Echinodermata - Definition, Classification, Characteristics . . . Derived from the Greek terminology, “Ekhinos” signifying “spiny” and “derm” denoting “skin”, the Echinodermata phylum encompasses organisms characterized by their spiny integument This distinctive feature is attributed to their endoskeleton, composed of calciferous ossicles, rendering them the designation of Echinoderms