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Eleutherozoa is a subphylum of echinoderms. They are mobile animals with the mouth directed towards the substrate. They usually have a madreporite, tube feet, and moveable spines of some sort. It includes all living echinoderms except for crinoids. The monophyly of Eleutherozoa has been proven sufficiently well to be considered "uncontroversial ...
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]
Download as PDF; Printable version; ... Phylum: Echinodermata: Class: ... Müller and Troschel, 1840: Suborders See text. The Ophiurida are an order of echinoderms ...
A brittle star, Ophionereis reticulata A sea cucumber from Malaysia Starfish exhibit a wide range of colours. This List of echinoderm orders concerns the various classes and orders into which taxonomists categorize the roughly 7000 extant species [1] as well as the extinct species of the exclusively marine phylum Echinodermata.
The Oegophiurida are an order of brittle stars, class Ophiuroidea.. The physical characteristics of this order include well separated lateral plates, which expose the oral surface of radial ossicles.
Pseudodiadematidae are members of the phylum Echinodermata. [1] Their fossil remains date to the Cretaceous period (144 - 66.4 MYA). Its child geniuses are Acanthechinopsis, Acrocidaris, Acrotiaris and Aplodiadema. The distribution of fossils in the Cretaceous are in Algeria, Brazil, Egypt, France, Hungary, Jordan, Madagascar, Morocco, Nigeria ...
Download as PDF; Printable version; ... Phylum: Echinodermata: Class: Echinoidea: Order: ... Family: Echinoneidae: Echinoneidae is a family of echinoderms belonging ...
Download QR code; Print/export ... Download as PDF; Printable version; In other projects Wikimedia Commons; ... Ophiura is a genus of echinoderms belonging to the ...