Vertebrate, any animal of the subphylum Vertebrata. They have backbones and are also characterized by a muscular system consisting primarily of bilaterally paired masses and a central nervous system partly enclosed within the backbone.

Subphylum Vertebrata (or Craniata) Bilaterally symmetrical; internal skeletal support with skull enclosing a highly developed brain and a vertebral column and nerve cord; paired, jointed appendages; skin; advanced organ systems; sense organs concentrated in head.

2024年12月20日 · chordate, any member of the phylum Chordata, which includes the vertebrates (subphylum Vertebrata), the most highly evolved animals, as well as two other subphyla—the tunicates (subphylum Tunicata) and cephalochordates (subphylum Cephalochordata).

vertebrate, Any animal of the chordate subphylum Vertebrata, which includes the fishes, amphibians, reptiles, birds, and mammals. Vertebrates have an internal skeleton formed of cartilage, bone, or both.

2024年12月20日 · Hemichordates are probably the closest relatives of chordates. Phylum Chordata has three subphyla: Tunicata (Urochordata or tunicates); Cephalochordata (Acrania or lancelets); and Vertebrata (Craniata or vertebrates).

2024年12月24日 · Bony fish, any member of the superclass Osteichthyes, a group made up of the lobe-finned fishes and the ray-finned fishes of the subphylum Vertebrata, including the great majority of living fishes and virtually all the world’s sport and commercial fishes.

Vertebrates are members of the subphylum Vertebrata, which is part of the phylum Chordata. Encyclopædia Britannica, Inc. The presence of a hollow, jointed backbone is the main feature that distinguishes vertebrates from invertebrates (animals that lack a backbone).

any member of the phylum Chordata, which includes the vertebrates (subphylum Vertebrata), the most highly evolved animals, as well as two other subphyla—the tunicates...

Protochordate, any member of either of two invertebrate subphyla of the phylum Chordata: the Tunicata (sea squirts, salps, etc.) and the Cephalochordata (amphioxus). Like the remaining subphylum of the chordates, the Vertebrata, the protochordates have a …

any member of the phylum Chordata, which includes the vertebrates (subphylum Vertebrata), the most highly evolved animals, as well as two other subphyla—the tunicates...