Chordate Phylum,animal Phyla
The word phylum (plural: phyla) is a category used to classify marine organisms. In this article, you can learn the definition of phylum, how it is used, and examples of phyla used to categorize marine life. 1 In the ocean, segmented worm species include such beautiful animals as Christmas tree worms. 2  Arthropoda-Many familiar types of seafood, such as lobsters and crabs, are arthropods. 3  Arthropods have a hard exoskeleton, a segmented body, and jointed legs. 4  Brachiopoda-this phylum includes lamp shells. List of animal phyla is a list of the major groups of animals usually classified as a phylum. Modern sources have been used: the list is different from that of Linnaeus or Cuvier. A list of this type may be arranged alphabetically; but equally it might be arranged according to evolutionary relationships. Despite this, there is agreement on most phyla. Most modern surveys include groups above the phylum: superphyletic groupings based on evidence of common descent. Differences of opinion about evolutionary relationships have been reduced by the use of molecular evolution and molecular clock research. There are at least 33 phyla (plural of phylum) of animals. Humans are members of the phylum Chordata. All of the chordates have elongated bilaterally symmetrical bodies. That is to say, the left and right sides are essentially mirror images of each other. Vertebrata is the most advanced and numerous subphylum of chordates. It includes all of the fish, amphibians, reptiles, birds, and mammals. Collectively, there are about 43,000 living vertebrate species in comparison to just over 1500 species in the other two invertebrate subphyla Animal Kingdom. The Animal Kingdom is split into several Phyla. Each Phylum group contains organisms that have things in common. Below is a list of some animal Phyla: Chordate Phylum: All the animals which have a backbone. Includes: Fish, Reptiles, Birds, Amphibians, and Mammals. Arthropod Phylum: All the jointed legged animals. All of these animals have an exoskeleton, meaning the skeleton is on the outside of the body. Instead of Phyla, the Plant Kingdom is split into Divisions. Each Divsion group contains organisms that have things in common. Below is a list of some plant Divisions: Magnoliophyta Division: All flowering plants. These plants have leaves, stems, and roots. In biology, a phylum (/ˈfaɪləm/ ; plural: phyla) is a taxonomic rank below kingdom and above class. Traditionally, in botany the term division was used instead of phylum, although from 1993 the International Code of Nomenclature for algae, fungi, and plants accepted the designation phylum. The kingdom Animalia contains approximately 35 phyla, Plantae contains 12, and Fungi contains 7. For example, the bearded worms were described as a new phylum (the Pogonophora) in the middle of the 20th century, but molecular work almost half a century later found them to be a group of annelids, so the phyla were merged (the bearded worms are now an annelid family). Phylum. Immediately below kingdom is the phylum level of classification. At this level, animals are grouped together based on similarities in basic body plan or organization. For instance, species in the phylum Arthropoda have external skeletons as well as jointed bodies and limbs. Vertebrata is the most advanced and numerous subphylum of chordates. It includes all of the fish, amphibians, reptiles, birds, and mammals. Collectively, there are about 43,000 living vertebrate species in comparison to just over 1500 species in the other two invertebrate subphyla In that system, bacteria are members of the domain Bacteria and phylum is the rank below domain as the rank kingdom is disused at present in bacterial taxonomy. In this classification scheme, Bacteria is (unofficially) subdivided into over 29 phyla with representatives cultured in a lab. Many major clades of bacteria that exist but cannot currently be cultured are known solely via metagenomics and are called candidate phyla. If these are included, the number of phyla is 52 or higher. Therefore, the number of major phyla has increased from 12 identifiable lineages in 1987, to 52 as of 2003. Furthermore, organisms in the stem group of a phylum can possess the body plan of the phylum without all the characteristics necessary to fall within it. This weakens the idea that each of the phyla represents a distinct body plan. For example, the bearded worms were described as a new phylum (the Pogonophora) in the middle of the 20th century, but molecular work almost half a century later found them to be a group of annelids, so the phyla were merged (the bearded worms are now an annelid family). The definitions of zoological phyla have changed importantly from their origins in the six Linnaean classes and the four embranchements of Georges Cuvier. Haeckel introduced the term phylum, based on the Greek word phylon. In plant taxonomy, Eichler (1883) classified plants into five groups, named divisions. For example, the bearded worms were described as a new phylum (the Pogonophora) in the middle of the 20th century, but molecular work almost half a century later found them to be a group of annelids, so the phyla were merged (the bearded worms are now an annelid family). Classes Found In The Phylum-Chordata All chordates have a number of structures in common: A notochord (noto = the back; chord = string) is present in all embryos, and may be present or absent/reduced in adults. This is the structure for which the phylum was named. 
http://marinelife.about.com/od/glossary/g/Phylum.htm https://simple.wikipedia.org/wiki/List_of_animal_phyla http://anthro.palomar.edu/animal/animal_3.htm http://www.fcps.edu/islandcreekes/ecology/classification_group_expla.htm https://en.wikipedia.org/wiki/Phylum http://anthro.palomar.edu/animal/animal_3.htm https://en.wikipedia.org/wiki/Bacterial_phyla https://en.wikipedia.org/wiki/Phylum https://en.wikipedia.org/wiki/Phylum http://my.ccsd.net/userdocs/documents/i6chAHnqwc5i0SID.pdf
what phylum are there