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Pacific sea nettles, Chrysaora fuscescens. Cnidaria (/ n ɪ ˈ d ɛər i ə, n aɪ-/ nih-DAIR-ee-ə, NY-) [4] is a phylum under kingdom Animalia containing over 11,000 species [5] of aquatic invertebrates found both in fresh water and marine environments (predominantly the latter), including jellyfish, hydroids, sea anemones, corals and some of the smallest marine parasites.
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Siphonophorae (from Greek siphōn 'tube' + pherein 'to bear' [2]) is an order within Hydrozoa, which is a class of marine organisms within the phylum Cnidaria.According to the World Register of Marine Species, the order contains 175 species described thus far.
The Scyphozoa are an exclusively marine class of the phylum Cnidaria, [2] referred to as the true jellyfish (or "true jellies"). The class name Scyphozoa comes from the Greek word skyphos (σκύφος), denoting a kind of drinking cup and alluding to the cup shape of the organism. [3] Scyphozoans have existed from the earliest Cambrian to the ...
Coelenterata is a term encompassing the animal phyla Cnidaria (corals, true jellies, sea anemones, sea pens, and their relatives) and Ctenophora (comb jellies). The name comes from Ancient Greek κοῖλος (koîlos) 'hollow' and ἔντερον (énteron) 'intestine', referring to the hollow body cavity common to these two phyla.
Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria.A profusion of alternate scientific names exists for this long-known and heavily discussed group.
Pages in category "Cnidarians" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. ...
ParaHoxozoa: Placozoa, Cnidaria, Bilateria/Triploblast. Bilateria: Xenacoelomorpha, Nephrozoa. Nephrozoa: Protostomes, Deuterostomes. Phylum Proarticulata † Disputed if this is in or out of Bilateria and Phylum Xenacoelomorpha is basal