Crossword clues for chordate
Douglas Harper's Etymology Dictionary
1885, noun and adjective, from Chordata.
Wiktionary
a. Of such animals. n. A member of the phylum ''Chordata''; numerous animals having a notochord at some stage of their development; in vertebrates this develops into the spine
WordNet
adj. of or relating to or characteristic of the Chordata
n. any animal of the phylum Chordata having a notochord or spinal column
Wikipedia
Chordates are animals possessing a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail for at least some period of their life cycles. Taxonomically, the phylum includes the subphyla Vertebrata, which includes fish, amphibians, reptiles, birds, and mammals; Tunicata, which includes salps and sea squirts; and Cephalochordata, comprising the lancelets. Members of the phylum Chordata are bilaterally symmetric, deuterostome coelomates, and the vertebrate chordates display segmentation.
Hemichordata, which includes the acorn worms, has been presented as a fourth chordate subphylum, but it now is usually treated as a separate phylum. It, along with the phylum Echinodermata, which includes starfish, sea urchins, sea cucumbers, crinoids, are the chordates' closest relatives. Primitive chordates are known from at least as early as the Cambrian explosion.
Of the more than 65,000 living species of chordates, about half are bony fish of the class Osteichthyes. The world's largest and fastest animals, the blue whale and peregrine falcon respectively, are chordates, as are humans.
Usage examples of "chordate".
In passing from the primitive chordates, such as amphioxus, into the vertebrate subphylum, one passes from an unspecialized nerve cord to one in which the anterior end has developed into the brain.
This single, hollow, dorsal nerve cord is possessed by all chordates (members of the Phylum Chordata), and by chordates only.
The chordates are one of three segmented phyla — segmentation involving a division of the body structure into similar sections, as a train is divided into separate coaches.
It must be that in this reality, our phylum, the chordates, didn't make it, while his phylum, whatever it is, did.
One of the abiding curiosities of the panorama of life shown by the Burgess Shale is that the most successful creatures of that time disappeared without trace, while comparatively minor lines like the chordates survived to prosper.
The chordates, of course, were the ones who later gave rise to the fishes, amphibians, reptiles, birds, and mammals.
They found her, another of the chordates Voozh Preeno had mentioned (more closely resembling a ray than a shark), sitting beside her cart, having a meal on a lawn before the infirmary.
Finding evidence of chordates on Mars was completely unexpected, a remarkable discovery.
A few phyla are generally well known, such as mollusks (the home of clams and snails), arthropods (insects and crustaceans), and chordates (us and all other animals with a backbone or protobackbone), though things then move swiftly in the direction of obscurity.
Running down the axis of the cord is the small central canal (which sometimes vanishes in adults), all that is left of the hollow in the original chordate nerve cord.