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A chordate (/ ˈ k ɔːr d eɪ t / KOR-dayt) is a deuterostomal bilaterian animal belonging to the phylum Chordata (/ k ɔːr ˈ d eɪ t ə / kor-DAY-tə). All chordates possess, at some point during their larval or adult stages, five distinctive physical characteristics (synapomorphies) that distinguish them from other taxa.
Chordate, any member of the phylum Chordata, which includes the vertebrates, the most highly evolved animals, as well as two other subphyla—the tunicates and cephalochordates. Some classifications also include the phylum Hemichordata with the chordates.
Phylum Chordata possesses the following characteristic features: It is a longitudinal, cartilaginous rod running between the nerve cord and the digestive tract. It acts as a support for the nerve cord and is replaced by the vertebral column after the embryonic stage in all vertebrates.
The phylum Chordata consists of animals with a flexible rod supporting their dorsal or back sides. The phylum name derives from the Greek root word chord - meaning string . Most species within the phylum Chordata are vertebrates, or animals with backbones (subphylum Vertebrata).
What is Chordata? The phylum Chordata represents a diverse and highly organized group of animals that share four key anatomical features at some stage of their life cycle. These features include the notochord, a dorsal nerve cord, pharyngeal slits, and a post-anal tail.
Chordata (biology definition): a phylum of the animal kingdom comprising all the animals that have, at some stage in their life, a notochord (a hollow dorsal nerve cord), pharyngeal slits, and a muscular tail extending past the anus. Includes the subphyla Cephalochordata, Urochordata, and Vertebrata (vertebrates).
A chordate is an animal that belongs to the phylum Chordata, which is part of the Deuterostomes kingdom. Organisms in the Deuterostomes kingdom have a distinct characteristic: their anus develops before their mouth in early embryonic stages.
The phylum chordata is named for the notochord, a longitudinal, flexible rod between the digestive tube and the nerve cord; in vertebrates, this is the spinal column. The chordates are also characterized by a dorsal nerve cord, which splits into the brain and spinal cord.
Chordates are bilaterally symmetrical animals, making up the third largest and the most diverse phyla in the animal kingdom, Chordata. They are distinguished by five characteristics: an elastic, rod-like notochord, a dorsal hollow nerve cord, an endostyle or thyroid gland, pharyngeal slits, and a post-anal tail.
Animals in the phylum Chordata share four key features: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. These characteristics are only present during embryonic development in some chordates. The notochord provides skeletal support, gives the phylum its name, and develops into the vertebral column in vertebrates.