Echinoderm | Definition, Characteristics, Species, & Facts
WEBMay 18, 2024 · 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. …
20 Echinodermata Interesting Facts - Facts.net
WEBMay 29, 2024 · Discover 20 fascinating facts about Echinodermata, from their unique anatomy to their important ecological roles. Dive into the world of these captivating …
Echinoderm - A-Z Animals
WEBMay 27, 2024 · Echinoderms are a type of marine invertebrate that have radial symmetry and unique vascular systems. This includes invertebrates like starfish or sea stars. All …
Sand dollar | Sea Creatures, Beach Finds & Marine Life
WEB3 days ago · sand dollar, any of the invertebrate marine animals of the order Clypeastroida (class Echinoidea, phylum Echinodermata) that has a flat, disk-shaped body. They are close relatives of sea urchins and heart …
Sea cucumber | Echinoderm Anatomy & Adaptations
WEB4 days ago · sea cucumber, (class Holothuroidea), any of 1,200 species of marine invertebrates that constitute a class within the phylum Echinodermata. The soft cylindrical body, 2 to 200 cm (about 0.75 inch …
Starfish - Wikipedia
WEB6 days ago · The class Asteroidea belongs to the phylum Echinodermata. As well as the starfish, the echinoderms include sea urchins, sand dollars, brittle and basket stars, sea cucumbers and crinoids. The larvae of …
Using the discontinuous bi-viscosity model to analyze the three ...
WEBMay 22, 2024 · Using the discontinuous bi-viscosity model to analyze the three-dimensional flow field and local scour behavior around Claviaster libycus (Echinodermata, Echinoidea)
World Echinoidea Database - World Register of Marine Species
WEB2 days ago · The World Echinoidea Database. (part of WoRMS - the World Register of Marine Species) Echinoids, or sea urchins (oursins [French], Seeigel [German], erizos …
The World Asteroidea Database - World Register of Marine Species
WEBJun 3, 2024 · The Asteroidea (also known as sea stars or starfish) are among the most diverse and familiar of the living Echinodermata, including over 1800 species from …
Ophiuroidea - The World Ophiuroidea Database - WoRMS - World …
WEB5 days ago · The Ophiuroidea (brittle stars and basket stars) are the largest class among extant Echinodermata. They are characterized by the disk being clearly offset from the …
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