Phylum Encyclopedia Article

Phylum

The following sections of this BookRags Literature Study Guide is offprint from Gale's For Students Series: Presenting Analysis, Context, and Criticism on Commonly Studied Works: Introduction, Author Biography, Plot Summary, Characters, Themes, Style, Historical Context, Critical Overview, Criticism and Critical Essays, Media Adaptations, Topics for Further Study, Compare & Contrast, What Do I Read Next?, For Further Study, and Sources.

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The following sections, if they exist, are offprint from Beacham's Encyclopedia of Popular Fiction: "Social Concerns", "Thematic Overview", "Techniques", "Literary Precedents", "Key Questions", "Related Titles", "Adaptations", "Related Web Sites". (c)1994-2005, by Walton Beacham.

The following sections, if they exist, are offprint from Beacham's Guide to Literature for Young Adults: "About the Author", "Overview", "Setting", "Literary Qualities", "Social Sensitivity", "Topics for Discussion", "Ideas for Reports and Papers". (c)1994-2005, by Walton Beacham.

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Phylum

Phylum is a taxon or group within the hierarchical system of taxonomy located between Kingdom and Class. Since this is such a broad inclusion, members of the same phylum are quite diverse and generally have simple similarities. It is also presumed that they have a common evolutionary ancestry. Examples of phyla in the Kingdom Animalia include Porifera (sponges), Cnidaria (jellyfish and sea anemones), Platyhelminthes (flatworms), Nematoda (roundworms), Arthropoda (insects, crabs, etc.), Mollusca (snails, clams, octopi, etc.), Echinodermata (sea stars, sea urchins, etc.), and Chordata (fish, amphibians, reptiles, birds, and mammals). Within the Kingdom Plantae, the term Division is generally substituted for Phylum. Examples of Divisions include Coniferophyta (cone-bearing plants such as pine trees) and Magniliophyta (flowering plants).