Zee-egels (zeeappels, zeeklitten; klasse Echinoidea) zijn stekelige, ongewervelde dieren die behoren tot het fylum stekelhuidigen (Echinodermata).
Wikipedia · Text under CC-BY-SA licenseSea urchin | Description, Anatomy, & Facts | Britannica
WebApr 8, 2024 · Learn about sea urchins, spiny marine animals with a globular body and a radial arrangement of organs. Find out how they …
Web4 days ago · A comprehensive database of echinoids, or sea urchins, a group of exclusively marine invertebrates with a globose or flattened skeleton. Includes all …
WebOct 1, 2018 · Learn about the Class Echinoidea, which contains echinoderms such as sea urchins, sand dollars and heart urchins. …
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WebApr 5, 2024 · Echinoderms are marine invertebrates with a hard, spiny covering or skin. They include sea urchins, starfishes, sea cucumbers, and more. Learn about their …
WebMay 27, 2020 · Learn about echinoids, the spiny marine animals that include sea urchins, sand dollars, and heart urchins. Explore their diversity, ecology, anatomy, and fossil record with 3D models, images, …
Echinoderm - Wikipedia
WebParacrinoidea † Regnéll, 1945. †=Extinct. An echinoderm ( / ɪˈkaɪnəˌdɜːrm, ˈɛkə -/) [3] is any deuterostomal animal of the phylum Echinodermata ( / ɪˌkaɪnoʊˈdɜːrmətə / ), which …
WebEchinoids are marine animals with a hard shell and spines, living in the seas since the Late Ordovician. They have a variety of shapes and functions, and their fossils can help to date the rocks in which they …
WebEchinoidea. There are approximately 940 species of echinoids distributed worldwide in marine habitats from the intertidal to 5000 meters deep. Their fossil record is extensive due to their test (an internal skeleton), and …
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