Examples of chordate in the following topics:
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- The chordates are named for the notochord: a flexible, rod-shaped structure that is found in the embryonic stage of all chordates and also in the adult stage of some chordate species.
- In some chordates, the notochord acts as the primary axial support of the body throughout the animal's lifetime.
- In chordates, it is located dorsally (at the top of the animal) to the notochord.
- The nerve cord found in most chordate embryos develops into the brain and spinal cord, which comprise the central nervous system.
- Some invertebrate chordates use the pharyngeal slits to filter food out of the water that enters the mouth.
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- The most familiar group of chordates is the vertebrates.
- Although tunicates are classified as chordates, only the larval form possesses all four common structures.
- With notochord and paired muscle blocks, the lancelet and Pikaia may belong to the chordate group of animals from which the vertebrates have descended.
- (b) The larval stage of the tunicate possesses all of the features characteristic of chordates: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail.
- Adult lancelets retain the four key features of chordates: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail.
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- Both genomic and fossil evidence suggests that vertebrates evolved from craniates, which evolved from invertebrate chordates.
- Vertebrates display the four characteristic features of chordates, but they are named for the vertebral column composed of a series of bony vertebrae joined together as a backbone .
- In the phylum Chordata, the closest relatives of the vertebrates are the invertebrate chordates.
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- A chordate nerve cord splits into the central nervous system: the brain and spinal cord.
- In chordates, the tail has skeletal elements and musculature, and can provide most of the propulsion in aquatic species.
- However, even though they are invertebrates, they share characteristics with other chordates that places them in this phylum.
- All chordates possess a notochord, or a type of flexible support rod, at some point in their development.
- In this dissected lungfish, which is a member of the chordates, tissues have been dissected away to display the notochord.
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- The phylum Chordata contains two groups of invertebrate chordates, but the most conspicuous and familiar members of Chordata are the vertebrates.
- As chordates, all vertebrates have a similar anatomy and morphology with the same qualifying characteristics: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail.
- In chordates, the central nervous system is based on a hollow nerve tube that runs dorsal to the notochord along the length of the animal.
- Vertebrates are the largest group of chordates, with more than 62,000 living species.
- All chordates are deuterostomes, possessing a notochord.
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- Annelids, mollusks, arthropods, echinoderms, and chordates are all eucoelomates.
- Deuterostome originates from the word meaning "mouth second. " Deuterostomes include more complex animals such as chordates, but also some simple animals such as echinoderms.
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- Echinoderms, mollusks, worms, arthropods, and chordates arose during this period.
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- The bilaterally-symmetrical animals are further divided into deuterostomes (including chordates and echinoderms) and two distinct clades of protostomes (including ecdysozoans and lophotrochozoans).
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- For instance, the extinct chordate Eoplacognathus pseudoplanus is thought to have existed during a short range in the Middle Ordovician period.
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- In the developing chordate (including vertebrates), the neural tube is the embryo's precursor to the central nervous system, which comprises the brain and spinal cord.