Eumetazoa (Greek: εὖ [eu], well + μετά [metá], after + ζῷον [zóon], animal) is a clade comprising all major animal groups except sponges, placozoa, and several other obscure or extinct life forms, such as Dickinsonia. Characteristics of eumetazoans include true tissues organized into germ layers, the presence of neurons, and an embry...
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http://en.wikipedia.org/wiki/Eumetazoa
(from the article `taxonomy`) ...(sponges)Phylum Porifera (sponges)Subkingdom EumetazoaPhylum Mesozoa (mesozoans)Phylum Cnidaria (or Coelenterata;...
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http://www.britannica.com/eb/a-z/e/51
The primary clade of Kindom Animalia that can be considered a subkingdom. The cells of Eumetazoans truly co-operate to form unmistakable tissues and organs. Nutrients and signals (e.g., hormones) flow efficiently betwwen cells, such that only specialized cells are involved in the acquisition of food.
Found on
http://www.fossilmall.com/Science/Glossary.htm
Eumetazoa A taxon erected to contain all metazoa except Porifera. Porifera: that phylum of the animal kingdom which contains the sponges. In general they consist of aggregates of cells, mostly choanocytes, which often line canals and chambers usually supported by a skeleton of fibers or spicules
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http://www.wordinfo.info/words/index/info/view_unit/1300/
the major division, or subkingdom, of Animalia comprising the eumetazoans.
Found on
https://www.infoplease.com/dictionary/eumetazoa
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